Explore the beautiful island of Bornholm. The ferry stops at Ronne. The island has a very good public transport system. However, it is also possible to explore around with a bike. Best suggestion would be to get a day ticket for the public buses and hop on and hop off from several stops. Hammershus is the most visited spot on the island. It is a ruined castle with great views. Christiansio, Arsdale, Dueodde, Hasle are few spots well connected with public transport. The beach of Dueodde is highly recommended.