Tvärminne Nature and Diving Trails

Explore the underwater life of the Baltic Sea along the Kolaviken Snorkelling Trail at Plagen Beach in Hanko. Observe the mussels, fish, and plants that live in the sea. The Tvärminne Zoological Station Nature Trail winds through a diverse protected area, with information panels highlighting the unique features of nature. The nature trail is open year-round, and the diving trail is open during the summer season.