Blå lagunen, Munsön, Lake and beach area in Ekerö Municipality, Sweden.
Blå lagunen is a lake on Munsön island with clear water that has an aqua blue color from its white limestone base. The water reaches depths up to 21 meters in some areas and features a beach where visitors can swim and relax.
The lake formed from an old limestone quarry that filled with water after mining operations ended. This transformation from industrial site to recreational area took place on Munsön, part of the greater Lake Mälaren region.
The lake draws many people during summer who come to swim, picnic, and relax in a social setting. It serves as a gathering spot where neighbors and families spend time together by the water.
The lake is accessible by public transportation using a metro line followed by a bus and a short walk. It is helpful to check seasonal conditions and beach access before visiting to plan your time there.
The water maintains unusual clarity throughout the year, making it a distinctive place for swimming in a Nordic region. This clarity comes from the white limestone composition of the lake bottom.
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