Hacken Open Air 2::25

This is a small camping event organized by folks from the @[email protected] hackspace! I've been to the 2017 and 2018 editions, and really enjoyed it! Feel free to mute #hoa21 if this doesn't interest you.
The first time, we had a lot of rain, a campfire, and orange tubes. The second time, we had a lot of heat, a pool, and a sauna. This time, there'll be a lot of masks and antigen tests, I guess. #hoa21
I was offline for most of the event, but this was really, really nice! Thanks to everyone who helped make #hoa21 happen! It was great to be part of such a cheerful and thoughtful group. <3
I had to leave early today to help count votes in a local election. Hope to see y'all again soon! 👋 #hoa21
This year, we had a pool *and* a campfire, connected with this spectacular contraption. The water temperature reached > 36 °C last night, according to @[email protected]! :) #hoa21
I also learned how to climb trees!! We hung the rope at a height of 5-6 meters, and climbing there felt extremely gratifying and safe! Not a skill I expected to learn this weekend! 😊 #hoa21
We got really nice feedback to our hiking stamps, and a lot of people found all 12, even though we put some of them at a lake a multi-hour hike away! :3 Well done! #hoa21
@blinry
Something confused me about this picture.
Took some staring to notice that the black stamp is mirrored. 😅
@blinry OK, this looks, well, interesting 
@blinry is this a heat exchanger stuck into a fire
@izaya It sure is! :3 Great to be surrounded by people who can whip something like this up!
@blinry an unexpected and creative use of one, I approve entirely