Köpmanholmen is Larsmo municipality's leisure area which is open to the public during the summer.

With your own boat or the municipality's rowing boats, you can easily get there from the port in Sonamo.
The rowing boats owned by the municipality may be freely used for visits to the islet. The taxi boat m/s Wilma transports passengers to the island free of charge during opening hours.

At Köpmanholmen there is a restaurant that is open seasonally for about two months in the summer from midsummer to mid-August.

At Köpmanholmen there is also a conference room, observation tower, sauna, swimming beach, playground, mini golf and piers.