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Nature Journaling For Birdwatchers

Sat, Apr 11, 8:00 AM

From Berlin Art Workshops

4.4

For those who love watching birds and wish to capture their observations on paper: Your workshop guide Maximiliána Martišková is a professional llustrator and graphic designer, bird enthusiast and passionate photographer of life. Dive into a world of unexpected details and joy as you attend her popular workshop series. Nature Journaling is designed to help you turn your field observations into confident drawings, even if you’ve never drawn before. The course leads you from basics of gesture drawing that allows you to express bird movement, through proportions to style, providing you with everything you need to keep a personal birdwatching journal – instead of just filling up pre-printed pages. What you will take away: – a sketchbook full of studies, notes and experiments that lead you to explore your favourite journaling style – a personal system for noting down behaviour, colour and observations – confidence in creating lively and authentic sketches outdoors – community of birdwatchers with the same goals Structure: The workshop takes place Saturdays, 10:00 - 13:00. Each workshop can be attended individually! If you choose to attend regularly, you receive loyalty pricing as a thank-you for the last three classes in the workshop series. 21.03. Observation Skillset 28.03. Gesture Drawing & Geometry 11.04. Light and Shadow in Observation 18.04. Colour Use and Technique 25.04. Layouting Systems for Sketchbooks 02.05. Journaling Systems and Coding 09.05. Lettering & Composition (Extra): Field Session – this is a voluntary and free field trip, organised based on participants’ availability and interest Everyone is welcome to join the field session, regardless of how many workshop classes they attended. The aim is simply to come together, share knowledge, and practice the skills developed throughout the workshop. Materials: * All drawing material is provided. Everyone is welcome to experiment with provided tools, but since journaling is about finding a personal way of expression, everyone can bring their own favourite tools. * Sketchbooks should be purchased before the course by the participants! * It is recommended to bring a minimum A5 landscape/portrait sketchbook with hard-cover binding. Booking: **[You can book the class here.](https://www.tickettailor.com/events/maxmartiskova/2036853)**[ ](https://www.tickettailor.com/events/maxmartiskova/2036853) * Single Class: €44.90 + €8.53 VAT * Loyalty Pricing: Each class lasts 3 hours and can be attended individually. If you attend four or more sessions, you receive personal loyalty pricing for the remaining classes (€34.90 per session).

1 attendee

Park Volley ☀️ 🏐 🌴 @ Hasenheide

Sat, Apr 11, 2:00 PM

From Berlin Beach Volleyball

4.9

**Join us for outdoor grass volleyball in Hasenheide park!** This event is not suitable for complete beginners. We play with two nets. The "chill court" is for mixed-level play with 3v3 up to 5v5. The "competitive court" is for higher-level 2v2 play with beach rules. Be sure to wear suitable sports clothing and perhaps bring a drink. There are no facilities such as changing rooms and showers in the park. A nearby public toilet is also available, but it might be closed, dirty, or not have toilet paper. **Location**: We play in the narrow clearing, located between the two paths in the center of Hasenheide park, on the southern side. Updates will be posted in the WhatsApp group, which you can join via [https://tinyurl.com/ParkVolley](https://tinyurl.com/ParkVolley) **RSVP**: Put yourself on the waitlist, even if other people are already on there. The waitlist is not chronological, so even if there are 30 people on there, you still have a chance! If you get a spot, you will be moved to the attending list and notified by Meetup. This is a free event with limited space. **If you can't make it, promptly update your RSVP to NO** so others can take your place. If you do not show up or cancel last minute, you will be marked as a no-show, reducing your chances of getting off the waitlist in the future. **Payment:** This event is free, but you are invited to make a 2 EUR donation towards equipment. **Attending**: Do not join if you have an infectious disease. You need to be on the attendee list to attend; **being on the waitlist is not sufficient**. Do not bring friends that are not on the attendee list. **Showing up without having a valid RSVP will get you banned**. **Safety**: Mind the terrain. The grass might be uneven and contain items such as bottle caps. It is not suitable for diving or playing like on a beach. Be careful not to twist your ankle. Keep an eye on your belongings since we are in a public park. We do *not* have a full first aid kit available. Please inform the organizer of any medical conditions that might require attention during the event. Some things you *might* want to bring: \* Drink \* Snacks \* Insect spray \* Sunscreen \* Toilet paper, if you wish to use the public toilet Join our WhatsApp community via [https://tinyurl.com/ParkVolley](https://tinyurl.com/ParkVolley) Follow us on Insta at [https://www.instagram.com/berlinvolleyball](https://www.instagram.com/berlinvolleyball) Pictures might be taken and shared publicly, such as on Meetup or Instagram. You can opt out by letting the organizer know you do not wish to be photographed. By RSVP'ing to this event, you acknowledge and agree to the following: Participation in this volleyball event is at your own risk. The organizer is not responsible for any injury, loss, or damage sustained during the event, whether caused by negligence or otherwise. You are aware of the inherent risks involved in park volleyball and voluntarily assume these risks. You agree to hold the organizer harmless from any claims, liabilities, or expenses arising from your participation, including any medical costs. Share anonymous feedback with the organizer via https://www.admonymous.co/entropy

14 attendees

@ Anna Blume - A cozy book swap and chat meetup!

Fri, Apr 10, 5:00 PM

From For all you book-lovers: Berlin Book Swap (and more)

4.7

The "classical" bookswap is simple: * We meet in a café and put the book(s) we brought down on the tables. * We browse and discuss the books with one another while sipping coffee or hot chocolate, or eating cake. * We write our names down on any books we’d like to take home (post-its and pens provided). * At the end of the evening, negotiate any books that are contended and take a new-to-you book home! Books/happiness shared are books/happiness multiplied! A Bookswap is 10 times better than a Book Club because you can talk about ALL the books instead of just one! This is a great way to give your books a new home and make room for new books: that book you feel guilty for not having read even though it's been sitting on your bedside table for the last 5 years, the book you liked but didn't love, the book you loved so much you want everyone to read it, the book you somehow own three copies of, that book you absolutely hated even though everyone else loves it, and so on. Moreover, you will meet fellow readers, get a new book or two, and several book recommendations. We’ve often had readers experience books they wouldn't normally buy and enjoy it. GROUP EXPECTATIONS for PLEASANT SWAPPING * Please bring a book! It's not that you bring one you take one, but do try your best to bring something. * Books stay on the tables, open for sharing, until you are ready to leave so that everyone can have a look. We are notably not first come first serve. Please wait until you are leaving to bag the book. * If two or more people want the only copy of a book, negotiate. Maybe one of you reads it first and then gives it to the others. Or perhaps they have found another book instead. Or leave it to fate and toss a coin. The best part: now you have found somebody whose taste you can really admire. In any case, please don't walk away with a book with several names on it without letting the others know. These negotiations are fun and easy, so don't shy away from a book because there's already a name on it, and feel free to put your name on as many books as you find interesting. It's not that you bring one you take one; you may take as many as you can negotiate. * Political discussions with consent: make sure the people you are talking to would like to have a political discussion with you. * Please respect this space as first and foremost a community for connecting readers over their love of books and reading, stories, and narratives of all sorts. Please be respectful of tastes and opinions. * If something is bothering you, please reach out to the organizers, and we'll do our best to resolve it. * Lastly, don't expect your book back. It will find a new home. If you love it, let it go. Major LANGUAGES (and genres) of this meetup: English, German, French, Spanish, Italian; Fiction, Non-Fiction, Serious Reading, Light Fun, “classics", Krimis, Booker winners, Sci-Fi, Fantasy, Self-Help and more. You never know who can read what languages, and there's no accounting for taste. We are a delightful and international group of readers. We look forward to swapping with you!

35 attendees

Chill Beach Volley 🏐 Funkhaus ☀️

Sun, Apr 12, 2:00 PM

From Berlin Beach Volleyball

4.9

Join us for chill **outdoor** beach volley at **Funkhaus Beach**! 🏐 🏐 🏐 ☀️ This event is for everyone who enjoys chill games and is not a *complete* beginner (A1.5+). We play 3v3 (or 4v4) with beach rules. There are no trainers at this event. Register via [the simultaneous event](https://www.meetup.com/berlin-volley/events/) for higher-level 2v2 matches (F1+). After playing, you can join us for socials with drinks and snacks at the bar area. We often play a social deduction game, which you're also welcome to join. We play in domes that are heated up to at least 15C. It's recommended that you come 10 minutes early so you have time to change and find the fields. If it is your first time, 15 minutes might be even better. You can join whatever court you like and move between courts during the event. We self-organize, so once you finish a game, you can start a rematch, mix with another court, or take a break as you see fit. Upon arrival, join the warmup happening on one of the courts. Join our WhatsApp community via [https://volley.berlin/WhatsApp](https://volley.berlin/WhatsApp) ([QR code](https://secure.meetupstatic.com/photos/event/b/f/d/5/highres_532249109.webp)) Follow us on Insta at [https://www.instagram.com/berlinvolleyball](https://www.instagram.com/berlinvolleyball) **Rules**: Do not join if you have an infectious disease. For everyone's safety, we do not allow kicking the ball during games with beginners. Be respectful of your fellow players. **Venue**: We play at [Funkhaus](https://sporthaus-berlin.net/), **outside** ☀️. Changing rooms are available in the nearby Paddle hall. **Payment**: You pay in advance via Meetup. Payment via PayPal or Urban Sports Club is not possible. **Refunds**: The venue does not provide refunds. Thus, we cannot refund you either, even if the event is canceled due to bad weather. If you know you can't make it in advance, you can try selling your spot to someone else via WhatsApp or the comment section. In the rare cases that we cancel an event due to poor attendance, everyone gets a full refund. Pictures might be taken and shared publicly, such as on Meetup or Instagram. You can opt out by letting the organizer know you do not wish to be photographed. By RSVP'ing to this event, you acknowledge and agree to the following: Participation in this volleyball event is at your own risk. The organizer is not responsible for any injury, loss, or damage sustained during the event, whether caused by negligence or otherwise. You are aware of the inherent risks involved in beach volleyball and voluntarily assume these risks. You agree to hold the organizer harmless from any claims, liabilities, or expenses arising from your participation, including any medical costs. Share anonymous feedback with the organizer via [https://www.admonymous.co/entropy](https://www.admonymous.co/entropy)

12 attendees

COMMON GROUND - Magic: the Gathering - Pauper Tuesdays at RuDi's

Tue, Apr 7, 4:30 PM

From Berlin Board Gamers

4.8

Come play Magic's most accessible competitive format! We meet every Tuesday at 18:30 at RuDi-Das Stralauer Kultur- und Nachbarschaftszentrum in Friedrichshain, \~10 minutes by foot from Warschauer Str. and Ostkreuz. **The best way to get in touch is to join the WhatsApp group:** https://unlock.ly/I7IhAbb *Even if Meetup has only 1 or 2 RSVPs, we are normally 20-30 people every week!* **FAQ:** **Do I need my own deck?** No, people that come bring extra decks, and you are free to borrow one if you want to test the format before buying into it! **Casual or Competitive?** We play casually to allow people to come late and leave early. Feel free to stay for any amount of time between 18:30 and 22:30. To this end, feel free to bring proxies, as long as it is clear what card you are proxying! **Why do you charge an entry fee?** Our 2 euro entry fee is a donation to the community center that we use to host our event.

12 attendees

2v2 Outdoor Beach Volley 💪☀️ Funkhaus

Sun, Apr 12, 2:00 PM

From Berlin Beach Volleyball

4.9

Join us for intermediate and advanced play on **outdoor** 2v2 courts at **Funkhaus Beach**. If you are not yet at the intermediate level (F1+) or want to play 3v3/4v4, sign up via [the simultaneous event](https://www.meetup.com/berlin-volley/events/) instead. We play with beach rules: do not use open hands for the first or last touches, do not touch the net, etc. We overbook slightly to ensure we have enough players and to allow individuals to take breaks. After playing, you can join us for socials with drinks and snacks at the bar area. It's recommended that you come 10 minutes early so you have time to change and find the fields. If it is your first time, 15 minutes might be even better. We play in domes that are heated up to at least 15C. You can join whatever court you like and move between courts during the event. We self-organize, so once you finish a game, you can start a rematch, mix with another court, or take a break as you see fit. Upon arrival, join the warmup happening on one of the courts. Join our WhatsApp community via [https://volley.berlin/WhatsApp](https://volley.berlin/WhatsApp) ([QR code](https://secure.meetupstatic.com/photos/event/b/f/d/5/highres_532249109.webp)) Follow us on Insta at [https://www.instagram.com/berlinvolleyball](https://www.instagram.com/berlinvolleyball) **Rules**: Do not join if you have an infectious disease. **Venue**: We play at [Funkhaus](https://sporthaus-berlin.net/), **outside** ☀️. Changing rooms are available in the nearby Paddle hall. **Payment**: You pay in advance via Meetup. Payment via PayPal or Urban Sports Club is not possible. **Refunds**: The venue does not provide refunds. Thus, we cannot refund you either, even in cases where the event is canceled due to bad weather. If you know you can't make it in advance, you can try selling your spot to someone else via WhatsApp or the comment section. You get a full refund if the event gets canceled due to poor attendance. Pictures might be taken and shared publicly, such as on Meetup or Instagram. You can opt out by letting the organizer know you do not wish to be photographed. By RSVP'ing to this event, you acknowledge and agree to the following: Participation in this volleyball event is at your own risk. The organizer is not responsible for any injury, loss, or damage sustained during the event, whether caused by negligence or otherwise. You are aware of the inherent risks involved in park volleyball and voluntarily assume these risks. You agree to hold the organizer harmless from any claims, liabilities, or expenses arising from your participation, including any medical costs. Share anonymous feedback with the organizer via [https://www.admonymous.co/entropy](https://www.admonymous.co/entropy)

11 attendees

April 24 - Berlin AI, ML and Computer Vision Meetup

Fri, Apr 24, 3:30 PM

From Berlin AI Machine Learning and Computer Vision Meetup

4.7

Join our in-person meetup on April 24th to hear talks from experts on cutting-edge topics across AI, ML, and computer vision. **[Register to reserve your seat.](https://voxel51.com/events/berlin-ai-ml-and-computer-vision-meetup-april-24-2026)** Space is limited! **Date, Time and Location** Apr 24, 2026 5:30 PM - 8:30 PM [MotionLab](https://motionlab.berlin/) Bouchéstraße 12/Halle 20 12435 Berlin **Kaputt: A Large-Scale Dataset for Visual Defect Detection** We present a novel large-scale dataset for defect detection in a logistics setting. Recent work on industrial anomaly detection has primarily focused on manufacturing scenarios with highly controlled poses and a limited number of object categories. Existing benchmarks like MVTec-AD (Bergmann et al., 2021) and VisA (Zou et al., 2022) have reached saturation, with state-of-the-art methods achieving up to 99.9% AUROC scores. In contrast to manufacturing, anomaly detection in retail logistics faces new challenges, particularly in the diversity and variability of object pose and appearance. Leading anomaly detection methods fall short when applied to this new setting. To bridge this gap, we introduce a new benchmark that overcomes the current limitations of existing datasets. With over 230,000 images (and more than 29,000 defective instances), it is 40 times larger than MVTec and contains more than 48,000 distinct objects. To validate the difficulty of the problem, we conduct an extensive evaluation of multiple state-of-the-art anomaly detection methods, demonstrating that they do not surpass 56.96% AUROC on our dataset. Further qualitative analysis confirms that existing methods struggle to leverage normal samples under heavy pose and appearance variation. With our large-scale dataset, we set a new benchmark and encourage future research towards solving this challenging problem in retail logistics anomaly detection. The dataset is available for download under [https://www.kaputt-dataset.com](https://www.kaputt-dataset.com). *About the Speaker* [Sebastian Höfer](https://www.linkedin.com/in/sebastian-h%C3%B6fer-891178121/) is an Applied Science Manager at Amazon Fulfillment Technologies & Robotics, leading machine learning and computer vision research for large-scale robotics and warehouse automation. He received his PhD from the Robotics & Biology Lab at TU Berlin, focusing on Sim2Real transfer and robotic perception. His recent work, “Kaputt: A Large-Scale Dataset for Visual Defect Detection” (ICCV 2025) [37], established a major benchmark for industrial anomaly detection, reflecting his expertise at the intersection of academic research and real-world deployment. **Data Foundations for Vision-Language-Action Models** Model architectures get the papers, but data decides whether robots actually work. This talk introduces VLAs from a data-centric perspective: what makes robot datasets fundamentally different from image classification or video understanding, how the field is organizing its data (Open X-Embodiment, LeRobot, RLDS), and what evaluation benchmarks actually measure. We'll examine the unique challenges such as temporal structure, proprioceptive signals, and heterogeneity in embodiment, and discuss why addressing them matters more than the next architectural innovation. *About the Speaker* [Harpreet Sahota](https://www.linkedin.com/in/harpreetsahota204/) is a hacker-in-residence and machine learning engineer with a passion for deep learning and generative AI. He’s got a deep interest in VLMs, Visual Agents, Document AI, and Physical AI. **Most AI Agents Are Broken. Let’s Fix That** AI agents are having a moment, but most of them are little more than fragile prototypes that break under pressure. Together, we’ll explore why so many agentic systems fail in practice, and how to fix that with real engineering principles. In this talk, you’ll learn how to build agents that are modular, observable, and ready for production. If you’re tired of shiny agent demos that don't deliver, this talk is your blueprint for building agents that actually work. *About the Speaker* [Bilge Yücel](https://www.linkedin.com/in/bilge-yucel/) is a Senior Developer Relations Engineer at deepset, helping developers build agentic AI apps with Haystack. Passionate about AI, she makes complex concepts approachable through hands-on tutorials, both online and at real-life events. **Operationalizing Computer Vision for Overhead Lines: Beyond the Demo** At first glance, visual inspection of high-voltage power lines seems straightforward: collect imagery, run one or two AI models, and report the findings. In practice, moving beyond a proof of concept reveals a range of issues that can make or break a campaign. Common concerns include data quality and coverage, scarcity of the most relevant cases and abundance everywhere else, variations in pylon geometry and asset types across regions, calibration and GIS alignment challenges, and a long tail of edge cases that emerge in real-world operations. This talk introduces Siemens Energy’s end-to-end overhead line inspection solution and shares key learnings from inspecting more than 10,000 km of power lines for real customers across several continents. We will show how raw 2D/3D data is transformed into structured information, delivering insights into asset inventory as well as defects, and supporting maintenance and planning decisions for critical infrastructure. The focus is on the combination of algorithmic building blocks and scalable processing, designed for robustness and consistency at scale, where even low error rates can become operationally significant. *About the Speaker* [Stefan Wakolbinger](https://www.linkedin.com/in/stefan-wakolbinger-aa0ba874/) is the Development Team Lead for AI & Analytics at SIEAERO, Siemens Energy's digital powerline inspection service. He leads the development of cutting-edge AI and analytics solutions that transform aerial powerline inspection through multi-sensor technology. His team creates digital twins of powerline infrastructure, automates fault detection, and monitors vegetation management—making powerline inspection safer, more precise, and more efficient. Stefan has been driving innovation in this role since September 2022. **Search your video library like a database** Drop in YouTube URLs or upload files and query content four ways: exact keyword matching, semantic search across transcripts, visual scene search via SigLIP2, and LLM-generated answers that synthesise across segments. [Paras Mehta](https://www.linkedin.com/in/pmehtaeu/) is a Berlin-based AI engineer and CTO/co-founder of Sylby, a language learning app he built from scratch, reaching 10,000 users and raising €350K. Previously: data scientist at Motionlogic, senior software engineer at Volkswagen, a PhD from Freie Universität Berlin, and a visiting stint at Cambridge. He now works as an AI engineer at HPI's AI Service Centre.

86 attendees

„Zum Leuchtturm“ von Virginia Woolf (1931)

Sun, Apr 12, 2:00 PM

From Buch Club

5.0

Hi, dieses Mal besprechen wir „Zum Leuchtturm“ von Virginia Woolf (1931). Hier der Link zum Inhalt und Buch : https://www.fischerverlage.de/buch/virginia-woolf-zum-leuchtturm-9783596120192 Wir treffen uns diesmal im Café Chagall nahe U-Bahnhof Senefelder Platz. :)

13 attendees

Let’s Play Backgammon! - Play, Socialize & Have Fun

Sun, Apr 12, 11:00 AM

From Backgammon Berlin

4.9

Join our Backgammon Meetup to play, socialize, and enjoy this classic game! Everyone’s welcome! Whether you’re a beginner or an experienced player. Expect fun, friendly games, laughter, and new friends. 👉 Please RSVP only if you plan to attend. 👉 Bring your own set if you have one. *** **How to Play (Quick Guide):** * Each player has 15 checkers and moves them toward their home board. * Dice rolls decide how many spaces you can move. * Land on an opponent’s single checker to send it to the bar. * Once all your checkers are home, start bearing off (removing them). * First to remove all checkers wins! *** **Fun Fact:** The Origin of Backgammon: Backgammon is one of the oldest known board games, with roots deeply embedded in the ancient civilisations of Mesopotamia. But it is in Persia, where the game truly flourished and evolved into what we now know as 'Takhte Nard'. Archaeological findings suggest that early forms of backgammon were played in Iran over 5,000 years ago. Artifacts such as game boards and dice have been discovered in sites like 'Shahr-e Sukhteh' (The Burnt City), indicating the game’s ancient origins.

24 attendees

Skaten um den Müggelsee

Sat, Apr 11, 1:20 PM

From Berlin Inline Skaters

4.9

Hallo Zusammen, bei trockenem und schönem Wetter können wir die Runde um den Müggelsee machen. Der Winter ist vorbei, Zeit, sich wieder auf die Kufen zu wagen. Beginn in S-Bahn Friedrichshagen, ca. 15:20, ich fahre ca. um 15:00 in Ostkreuz los. (Eis-)Bademöglichkeiten gibt es nach ca. 15 km am Strandbad oder nach ca. 9 km am kleinen Müggelsee. Getränke solltet Ihr in diesem Fall dabei haben. Ausstiegsmöglichkeiten gibt es nach ca. 15 km in Rahnsdorf oder bei Erkner - dann verpasst Ihr aber das beste Stück. Wenn wir über Köpenick zurückfahren, dann sparen wir und den Spreetunnel. Grundlegende Skate- und Bassibremskenntnisse werden erwartet. Jeder ist für seine eigene Sicherheit verantwortlich. Wer es nicht schafft - die Müggelseerunde ist eine der besten Berlins, ich plane sie noch öfters dieses Jahr.

10 attendees

Willa Cather: A Lost Lady

Mon, Apr 13, 5:00 PM

From American Literature Book Club

4.7

Dear fellow book lovers, for this meeting we will discuss *A Lost Lady* by Willa Cather. We are going to have the meeting at Tipperary Berlin (Triftstraße 58, 13353 Berlin). As maintaining a site on meetup.com is not free, we would appreciate a donation of 1–2€ from all attendees. (We have a tip jar for that purpose.) All attendees are expected on time, please do NOT show up late (15 minutes or more), as this can be very disruptive to our discussion. Also, if you are feeling sick/under the weather, please refrain from coming for everyone's safety. Hope to see you then!

10 attendees

Spring Rhythm - Introduction to block printing

Wed, Apr 8, 4:30 PM

From Les Amis Berlin | Women Community

3.9

Spring Rhythm is a relaxed, creative textile print session designed to help you slow down, create, and connect. Over two hours, you’ll step into the world of block printing at Atelier Māya and explore the craft through guided test printing on a variety of test print surfaces. Short prompts and playful challenges invite you to experiment, notice rhythm and pattern, and enjoy the process of the handprint crafts. Our #FLOW testprint challenges are a hit! There’s no pressure and no expectation of a finished piece. Only creative fun and a lot of inspiration! Come explore your curiosity and creativity in a welcoming professional textile design studio. Come with friends or connect with new ones while spending time exploring the craft together. Places are limited to keep the group small and the experience personal. **Les Amis** is a women-only community of friendly souls. We provide access to hundreds of experiences that explore your passions and connect you with other event participants. **Check our website to learn more, and apply to join our community and events**: [lesamis.cc/apply](https://www.lesamis.cc/apply)