An evening walk in the beautiful Kalamaja-Lennusadam region while searching for hidden treasures - sounds great doesn't it :). If you don't know what is geocaching you can read more about it from here - https://www.geocaching.com/play. No special equipment needed, nowadays you can just use your cellphone. Dress according to the weather.
Let's meetup in front of the Circle K gas station near Linnahall. Don't be late!
See you on 19th!