Blue water invites for a swim

Without knowing what temperature to expect - the temptation for a swim is far big and I dive into the crystal clear water. Surprise surprise - I expected may be biased from mountain lakes a cooler water but hit a bath tub like warm water of about 32-34 degrees centigrade.

Fresh water - because I tasted it of course a pretty large lake with corners - just perfect for a swim, one lake one swimmer.