"Maretarium" - a unique aquarium enormous proportions, where the natural environment is home to over 50 species of fish and shellfish, introducing visitors to the underwater life of the Baltic Sea and Finnish waters, in accordance with the seasons.

Maretarium consists of 22 special aquariums, the largest of which - Baltic - up to 7m deep. In the maritime theater daily carried an amazing dive diver feeding the fish. In winter, the aquarium at eelpouts born offspring appears, and in the summer - from smelt.

The School of Nature "Heil" are cognitive activities for pupils with sightseeing nature walks.

The recently opened terrariums settled lizards, snakes, frogs and aquatic insects collected in the collection of the famous Finnish biologist Ilkka Kayvisto.