HANKO, SOUTHERN FINLAND
SUN, SAND AND SEA
Hanko is famous for its beaches but it's also a home of multiple different summer events for sailing, tennis, horses, jazz and many others.
Full event list can be found here.
Hanko city center has 2 visitor harbours, both with nice saunas and restaurants. Itämeren portti is located on an island within 2 mins boat ride, but offers slightly more privacy than Itäsatama/HSF Marine.