More than 600,000 visitors — both Greek and foreign — flock here to witness the incredible natural spectacle, located 26km from the city centre. From July to September, butterflies swarm in their thousands, seeking cool and damp conditions. In the mornings, you'll see them clustered in hundreds on the branches.

A visit to Västerviks Museum offers new insights into the long history of the Tjust region. Explore the exhibitions, stroll through the picturesque park area, view the old crofts, or perhaps peek into the blacksmith's shop or quarry. Outside the museum, there's also a collection of traditional local boats, known as 'tjustökor'. For those who enjoy heights, the city view from the Unos Torn observation deck is a must-see.

Västervik's hospital, opened in 1912, was established due to the acute need for psychiatric care facilities. The hospital functioned as a self-contained community, housing approximately 1,400 patients and 900 staff at its peak. It was a closed world, now revealed at the Psychiatric Museum. The museum is housed in a former ward restored to its original condition. Visitors can take a guided tour to learn about the care practices during the hospital's operational days. The museum also features photographs from that era. In addition to the permanent exhibition, there are several smaller events organized each year.