Rummu has earned its status as a legendary place in history, tourism, and scuba diving. In 1938, a prison camp was opened there where prisoners were used to mine the so-called Vasalemma limestone from the quarry.

We will "fly" over this underwater world after the sun has set. Using lights to guide us, we will glide over underwater forests and the roofs of the miniature Atlantis, and try to find sleeping schools of fish in the crowns. There, we will use green, white, blue, and red lights to peek into the thicket of reeds and under the limestone coast.