This year spring was lat, there was snow, ice and cold weather pretty long time. But when it changed it did so big time. And then we had many days of +20-25 C temperatures, which not so common here Finland in May or beginning of June. So with that waters warmed up earlier than usually, witch means many people have done their first outdoor swims earlier than many other years. That group includes me also. One thing that speaks about that is the issue that even the ladders were not in place.
Here is the same lake at evening
And now the ladders are in place to make it bit easier