First time swimming in Nuuksio's Pitkäjärvi (Nuuksio Long Lake)! There isn't really an official beach, but there is one semi-official, down from the Haltia nature center.
It is here: N 60.292973 E 24.554634.
For more sauna and swimming stories, check out planetswimmer.com and saunablogger.cool websites! And of course the Planetcaver, and Planetskier blogs for other stories in Blogspot and TGR! The photos and text (c) 2021 by Jari Arkko. All rights reserved. I never take photos of other swimmers on a beach, and try to visit at times where there is simply no one else around.