Sweden - Archipelago Raid

Stockholm, Sweden - teams of two sail Formula 18 catamarans day and night, and weave through an intriguing sailing course among the Stockholm, Ă…land and Finnish Archipelagos. 20-25 checkpoints located on beaches, boats, pontoons, and lighthouses as described in the Archipelago Raid Book, but the teams are free to choose their own sailing route between two checkpoints, making for some interesting navigational maneuvers as the teams try to avoid hitting any of the 100,000 islands and jagged rocks along the way.
Some great photos on yacht Pals.
