Gressholmen is an islet in Oslofjord. Connected to Heggholmen and Rambergoya, the island trio were a significant area industrially, producing soap and paint. A big part of these islands is a nature reserve, with the rest becoming a tourist favourite. Gressholmen is the ideal place for a relaxing day in the sun, only a ferry ride away from the mainland. In the summertime, you can enjoy beer and wine with dinner, fresh shrimp, and sandwiches in Gressholmen.