Rare natural spectacle in Bavaria: Impressive photos of the purple pond.. As of: April 3, 2024, 1:35 p.m By: Katarina Amtmann CommentsPressSplit Curious people have been at the pond in the Allgäu in the last few days.

Because purple coloring is rarely seen in lakes, the phenomenon last occurred at the Gipsbruchweiher in 2020. The expert sees no health risks for people or animals because purple bacteria do not produce any toxins.