Open Water Swimming
Meet other local people interested in Open Water Swimming: share experiences, inspire and encourage each other! Join a Open Water Swimming group.
12,719
members
16
groups
Largest Open Water Swimming groups
Newest Open Water Swimming groups
Frequently Asked Questions
Yes! Check out open water swimming events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.
Discover all the open water swimming events taking place this week here. Plan ahead and join exciting meetups throughout the week.
Absolutely! Find open water swimming events near your location here. Connect with your local community and discover events within your area.
Open Water Swimming Events Today
Join in-person Open Water Swimming events happening right now
51st Annual One Day Hike
The **One Day Hike** comprises two concurrent, non-competitive hikes of 100 and 50 kilometers that follow the C&O Canal towpath, and end at Bolivar, WV. The 100 km event (100K; 62.1 miles) starts at 3 AM from the Thompson Boat Center parking lot in Georgetown, DC; the 50 km event (50K; 31.1 miles) starts at 10 AM from Whites Ferry, MD. Both hikes proceed along the towpath, crossing the footbridge into Harpers Ferry after mile marker 60. The ODH has been held since 1974.
During the hike, hikers pass through eight support stations, manned by volunteers (see [volunteering information](https://www.meetup.com/sierrapotomac/events/312467618/?isFirstPublish=true)), where they receive food and drink and, if necessary, first-aid assistance. While on the trail, they are monitored by volunteer bike patrols. Hikers must arrive at support stations by cut-off times or are required to drop out, and must finish by midnight. *ALL HIKERS MUST BE PRE-REGISTERED.*
Photo albums of previous ODH's: **[bit.ly/MWS-ODH](www.bit.ly/MWS-ODH)**.
**REGISTRATION:**
Registration costs $95 and is done on-line starting Wednesday, February 11, at 5 pm (5-time finishers may register early starting Sunday, February 1, at 5 pm). Note that registration closes when the 350-hiker limit (100K+50K) is attained, which can occur within a few hours. See registration [details](https://drive.google.com/file/d/1niIsqRVC8Zl72JzAvBonqlzg4TLWiaGH/view?usp=sharing).
**UPDATES:**
For hot-off-the-press, official updates regarding registration and other information, join the ODH email list by sending a blank message to OneDayHike+Subscribe@Groups.io. For general information, check out [OneDayHike.org](www.OneDayHike.org).
**TRAINING HIKES:**
The Sierra Club Potomac Region Outings ([SCPRO](https://www.meetup.com/sierrapotomac)) organizes training hikes in the weeks leading up to the ODH. Although open to all, these hikes are specifically designed to prepare you for the ODH — they become progressively longer, they follow routes with relatively easy trails that are generally flat, and hikers walk at their individual paces. Longer training hikes also allow shorter options for 50K trainees. Doing these training hikes, or following a similar regimen on your own, is the best way to improve your chances of completing the ODH.
Training hikes will be held from every Saturday from January 10 to the Saturday prior to the ODH. They are free, and are held at many venues in or near DC, so it’s a great way to explore this area on foot. On these hikes, you will get to meet other ODH hikers and learn their, or share your, tips on long-distance hiking. Each training hike's details will be posted on SCPRO's [Meetup](https://www.meetup.com/sierrapotomac) page each week, as well as announced on the email list (see UPDATES above).
**VOLUNTEERS NEEDED:**
About 100 volunteers are required on hike day to help run the ODH. We need reliable, enthusiastic people to man the support stations, patrol the trail on bikes, and to provide first aid — all while encouraging hikers on their way. People with first-aid or medical experience are especially needed as first-aid volunteers. First-time volunteers receive an ODH T-shirt and the eternal gratitude of the hikers. If you are interested in volunteering, please see [volunteering information](https://www.meetup.com/sierrapotomac/events/312467618/?isFirstPublish=true), or contact Mike Darzi (Mike.Darzi@Gmail.com).
Saturday Afternoon Chess (Open Play) @ U.S. Chess Center
Join us at the Chess Center offices (Suite 118, entrance on 2nd Avenue) on Saturday afternoons from 1:00 – 5:00pm ET for open play. Players of all abilities and ages are welcome.
* Non-Members: $5.00/player table fee for the day.
* Chess Center [Members](https://chessctr.org/membership/) always play for FREE ($0.00).
Check our social media ([Twitter](https://twitter.com/uschess) / [Facebook](https://www.facebook.com/USChessCenter)) for closure announcements: The Chess Center is closed on major holidays.
We also have chess sets, clocks, and [used chess books](https://chessctr.org/usedbooks/) for sale.
Open play up to 18 players
Open play up to 18 people, all levels. Bring your friends, bring potential new members, a BBQ, your dog and cat, your good times and your laughter too.
Swing at the Lincoln Memorial!
We'll have **FREE** swing dance at the Lincoln Memorial on Saturday, May 2, 2026. 2 p.m. to 5 p.m. No partner required, all ages, styles and abilities welcome. Weather should cooperate and there is no swing dance at Glen Echo that night, so a chance to strut your stuff in front of the multitude of tourists! I'm the DJ, so feel free to bring your requests!
Volunteers Needed for the One Day Hike
Volunteers are needed for the **[51th Annual One Day Hike](https://www.meetup.com/sierrapotomac/events/312467688/?isFirstPublish=true)** (ODH). The ODH is a fully supported event that requires about 100 volunteers to put on and pull off. Volunteers must be enthusiastic, dependable, and hardy — showing up to work on time, *regardless of weather*. First-time volunteers get a free ODH T-shirt as a token of appreciation.
Many volunteers are former ODH'ers paying back some of the help they received, and/or are family and friends of a hiker. If you are a veteran volunteer and want to reprise your role or would like to try something different, if you are an interested newbie, or if you just need more information about volunteering, email Mike Darzi (Mike.Darzi@Gmail.com) — *Please do not instead RSVP, message, or comment.*
Photo albums of previous ODH's: **[bit.ly/MWS-ODH](https://bit.ly/MWS-ODH)**.
**1) SUPPORT-STATION VOLUNTEERS** are needed to man/woman stations that provide food, drink, and assistance to hikers. If you are interested, let us know your preference in terms of time of day and amount of time you are willing to help. The more flexible you are in terms of location and time, the better. Except for the first three stations (through Edwards Ferry), you do not have to stay for a station’s entire period of operation, although that is preferable, and — yes — many volunteers serve at more than one station.
The stations are:
* Old Anglers, 5 to 7:30 am
* Seneca Creek, 7 to 11 am
* Edwards Ferry, 9 am to 2 pm
* Whites Ferry, 10 am to 3:30 pm
* Monocacy, 11 am to 6 pm
* Point of Rocks, 1 pm to 8 pm
* Brunswick, 2:30 to 10 pm
* At Harpers Ferry and Bolivar (5 pm to midnight), where volunteers are also needed to guide hikers along the towns’ route.
If you are willing to take on especially challenging tasks, we need you! Let Mike know.
**2) BIKE PATROLLERS** are needed to ride their bikes to check on hikers all along the (mostly) unpaved route, providing assistance as needed. Patrollers are needed from about 6:30 am to midnight. If you are interested, or for more information, email Bike Patrol Coordinator, Jeff Comer (Comer.Jeffrey@Gmail.com), or Mike.
**3) FIRST AIDERS** that can administer first aid to hikers as needed at major support stations. If you have first-aid or medical training, we’d love your help. If you are interested, or for more information, email First-Aid Coordinator, Jason Hauf (LJHauf@Gmail.com), or Mike.
For official updates about the ODH, join our email list by sending a blank message to OneDayHike+Subscribe@Groups.io . To learn more about the ODH, check out [onedayhike.org](https://www.onedayhike.org/).
***Year in and year out, volunteers are what make the ODH the great event that it is!***
Hopelessly Devoted to Murder - Murder Mystery Dinner Theatre
# Hopelessly Devoted to Murder
Written and Directed by Terry Smith
Produced by Jerri Wiseman
Cast Members: Betsy Hansen, Ilan Komrad, and Russell Silber
***Greased hair, bobby socks, poodle skirts—and one shocking murder. At Rockway High, the drama is bigger than the school dance, and when a student turns up dead, the resident cool guy and his gang race to uncover the culprit before the last song plays. Dress to impress in your best ’50s style and join the party. It’s a night of dinner, dancing, and deadly fun you won’t want to miss.***
[Murder Meter™](https://www.stagecoachtc.com/murder-meter/) Saucy Suspects
Performances will be held at area historic venues, restaurants, wineries, and breweries March – May 2026.
### May 2 at Ono Offshore in Chantilly
Ono Offshore, 4515 Daly Drive, Suite N, Chantilly, VA 20151
5:30pm Doors and Beverage Tabs open
6:00pm Dinner starts
6:45pm Show starts
There will be a 15-20-minute intermission.
Tickets: $57 plus ticketing fee and sales tax includes the show, catered dinner and dessert by Odd BBQ.
Menu: Choice of smoked pulled pork or smoked chicken thighs and bun. Assemble your own sandwich with choice of BBQ sauce. (A Beyond Brat will be available for those who select a Vegetarian/Vegan Meal.) Macaroni and cheese. Grilled Vegetables. Baked Beans. Cookies for dessert.
Beverages are not included in the ticket price. Guests will be able to open a tab for the self-serve beer wall with 4 craft beer options from Ono Brewing Company. There will also be hard seltzer and wine available for purchase in addition to assorted sodas, tea, and bottled water.
### [Click here to make reservations for Ono Offshore. ](https://ci.ovationtix.com/36598/production/1265168)
You must buy a ticket to attend. An RSVP here will not save you a seat.
Saturday Run - 50 min (25 out and 25 back)
This Saturday lets run to the National Mall! We will start at Roosevelt Island at the crosswalk in the center of parking lot.
(Note there is an alternative meeting spot, it is right on the Custis trail, on the North side of Gateway Park, near Langston Blvd and Lynn St; it will be clearly marked as the meeting spot if conditions are bad on a given Saturday. Ignore this unless told otherwise.
Afterwards stay for coffee, we'll wander up to Rosslyn and either meet in Compass or, if the weather is nice enough, at the Plaza opposite the Metro.
Note: Photos taken during the event may end up on Instagram, Meetup, Strava and similar platforms.
\|LOCATION:
Roosevelt Island Parking Lot. Use this map to locate the parking lot ([https://www.google.com/maps/place/38%C2%B053'48.2%22N+77%C2%B004'02.1%22W](https://www.google.com/maps/place/38%C2%B053'48.2%22N+77%C2%B004'02.1%22W)) [GPS: 38°53'51.99"N 77° 4'3.24"W]. To help new people find the group, please meet in the middle of the parking lot.
Please meet 10 min. before the start time.
Alternative location, ONLY when indicated, on the Custis trail, on the North side of Gateway Park, near Langston Blvd and Lynn St: [https://maps.app.goo.gl/3SNFYSkFv9rRQed37](https://maps.app.goo.gl/3SNFYSkFv9rRQed37)
PACE and MILEAGE:
All paces are welcome! We'll be doing an out and back route, so everyone will just turn around at the halfway time marker. We generally average from 8-12 min/miles and run for fifty minutes. But, you can run any amount of time or mileage. And if you need to walk, it's not a problem either, everyone needs to start somewhere!
ROUTE:
The usual route is [https://onthegomap.com/s/7r0gvj5r](https://onthegomap.com/s/7r0gvj5r). It may vary occasionally. The full circuit works out to around 8:30 min/mile for a 50 minute run. Slower paces can turn around earlier, faster paces can run farther.
PARKING:
Use this map ([http://bit.ly/i2dWD0](http://bit.ly/i2dWD0)) to find parking in Rosslyn. There are parking lots at Roosevelt Island and above the Continental Lounge. There are also meters and pay garages.
DIRECTIONS:
For those of you driving to Roosevelt Island, please note that the parking lot is only accessible from the NORTHBOUND lane of GW parkway. You will see it right after the Roosevelt Bridge. Also whenever it is warmer the parking lot fills up really quickly. You are strongly advised to use alternative travel or park in Rosslyn.
They do ticket illegally parked cars at the island!!
METRO:
Orange or blue to Rosslyn. From N. Moore St, turn left; right onto 19th St; cross Lynn St. and turn left; take the trail on the right just before the Key Bridge.
Open Water Swimming Events This Week
Discover what is happening in the next few days
Escape the wind - Paddle Rocky Gorge Reservoir at Browns Bridge
The forecast has gotten too windy to trek down the Anacostia River on Sunday, so I've postponed that one by a week. Instead, let's head to the reliably sheltered reservoir put-in at Brown's Bridge.
As I'm writing this on Wednesday, we're getting a good long rainstorm that should raise the Patuxent plenty to get us upstream. We will put in at Brown's Bridge, make a left and paddle about 1.7 miles upstream. After a short break, we'll head back the way we came. We will surely see plenty of birds, but might also catch a glimpse of Musky or Bucky along the way too!
This is event is suitable for kayaks and canoes (but not inflatables). WSSC does not allow paddle boards on their reservoirs and has been getting more serious about enforcement. If you've got a seat attachment for your SUP and can paddle it sitting down, I *think* you're in the clear. As always, you must WEAR, not just carry your life jacket/PFD.
**WSSC requires a watershed use permit.** Permits are $6.25 per day or $72 for the year. I heard that they increased the fine for not having one to $100. You can purchase them online at:
[https://my.wsscwater.com/selfcare/views/public/login/login.faces](https://my.wsscwater.com/selfcare/views/public/login/login.faces)
Yoga for Everyone – Gentle Flow & Meditation
Theme: Gentle Flow Yoga & Meditation
Level: Beginner to Intermediate
Time: Sunday 9:30 – 10:30 AM
Location: Bluemont park
Cost: Free
What to bring: Yoga mat, water, comfortable clothing
Location: Basketball court of Bluemont park, google map 38°52'06.2"N 77°07'52.0"W
Parking: South Bluemont Parking Area
About the session
*A gentle flow-based yoga session to move, stretch, and reconnect with your body.
We may include simple breathing techniques and a short meditation session.
- This is not a high-intensity class.
You are welcome to go at your own pace and take breaks anytime.
*Suitable for beginners and regular practitioners.
Notes
- Light food is recommended before practice
*Outdoor session: feel free to bring sunscreen, towel, or anything you need
- Please be mindful of your own body and practice within your limits
By joining, you acknowledge that you are responsible for your own health and well-being during the session.
About the host
200h Yoga Teacher Training (2019)
Long-term yoga practitioner and part-time teacher
🌿 May you find a moment of ease and connection in your practice.
**Smiley Social documents:**
1. [Group Rules](https://docs.google.com/document/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg)
2. [Liability Waiver](https://docs.google.com/document/d/1W2mq-7m99lmvd7gdWYaSUFtvVg4UGnzV6koafAbHmco)
🔥 60-Minute Full-Body Circuit Training Workout
🔥 60-Minute Full-Body Circuit Training Workout
⏱️ Structure Overview
We will meet at the volleyball court in Founders Park in Alexandria, VA
Warm-up: 10 minutes
Main Circuits: 40 minutes
Finisher: 5 minutes
Cool-down: 5 minutes
🟢 1. Dynamic Warm-Up (10 Minutes)
Perform continuously, 30–45 seconds each:
Jumping jacks
Bodyweight squats
Arm circles (forward/backward)
Walking lunges
Inch-worm walkouts
High knees
Glute bridges
Push-ups (easy pace)
Goal: Increase heart rate + activate major muscle groups.
🏋️ Main Workout (40 Minutes)
Format:
3 Circuits
4 exercises per circuit
40 seconds work / 20 seconds rest
Repeat each circuit 3 times before moving on
Rest as long as you want between circuits
Cool down 5 Min
IMPORTANT!!!!!
Liability statement:
I understand that I am responsible for exercising at my own pace and within my own physical limits, and for monitoring my condition during participation. I voluntarily assume all risks associated with my participation and agree that I attend entirely at my own risk. I hereby release and hold harmless the organizer, and affiliated parties from any and all liability, claims, or demands arising out of or related to any injury, medical condition, loss, or damage that may occur as a result of my participation.
Open Water Swimming Events Near You
Connect with your local Open Water Swimming community
SEASON OPENER ** SEE NOTE**
**THIS IS ONLY IF YOU ALREADY SIGNED UP!**
NEW POLICY IS IN PLACE FOR THE OPENER. THEY ARE REQUIRING A $ 75.00 DOLLAR DEPOSIT. PLEASE MAIL YOUR CHECK TO MICHAEL BUCHANON 6619 AMBAR AVE CINCINNATI OH 45230. MAKE CHECK OUT TO ASGA CINCINNATI.
CALL TAMMIE WITH ANY QUESTIONS. 513 309-2633
The Virtues golf getaway will be our Season Opener trip! Staying at the Holiday Inn Express in Heath **NOTE Hotel may change**
**Double occupancy** $440 includes **2 nights stay**, **3** rounds of golf
**Single Occupancy** $570 includes **2 nights stay**, **3** rounds of golf
**Double occupancy** $360 includes **2 night stay,** ***2*** *rounds of golf*
**Single occupancy** $490 includes **2 night stay**, **2** round of golf.
**Double occupancy** $295 includes **1 night stay, 2** rounds of golf
**Single occupancy** $360 includes **1 night stay 2** rounds of golf
Please read the accommodations carefully. The hotel includes breakfast.
**You will pay in full including the hotel at the Virtues Golf Club Sunday.**
**There are 6 doubles and 5 singles reserved for this event.** The hotels are booked for graduation. The sooner we sign up the better.
Here is the schedule...
Friday.. Eaglesticks Golf Club 11:54
Sat... Dennison 9:00
Sun... The Virtues Golf Course 9:10
**Dinner Friday is at 7:15 TBD**
**Dinner Saturday is at 5:30 1922 on the Square 10 N Park Pl Newark**
***Please answer the following questions \*\*\*\****
**I need to know if you are a single or double and who you are rooming with. How many nights are you staying and rounds of golf.**
**Also if you are a double or single requesting a King bed. There are a limited number of Kings so 1st come 1st served**
Hybrid MI Python: Switching from Sphinx to Markdown
**Talk Description**
For most of Python's history, the predominant option for documentation has been Sphinx and reStructuredText. However, a majority of other ecosystems have adopted Markdown. There are historical reasons for reStructuredText being a better choice, however, Markdown is now up to the task.
In this talk, you'll learn why Markdown is a better option for your project's documentation. You'll be introduced to MkDocs, a static site generator built around Markdown content, and a series of associated plugins and extensions that you need to bring Sphinx-like capabilities to Markdown documentation. You'll hear a case study of migrating multiple large, existing Sphinx-based documentation bases to Markdown, including the tools used for automating the process. You'll learn how you can engage the community to assist with the effort. Finally, you'll learn why it's worth the effort to make a change of this magnitude.
**Agenda:**
7:00pm - Opening announcements
7:10pm - Switching from Sphinx to Markdown
7:50pm - Q&A

























