The Superior 600 is an International yacht Race available for single-handed, double-handed and fully-crewed yachts and is held on the even years. The race, a circumnavigation, uniquely features four different possible start/finish locations: Superior, WI; Bayfield, WI; Whitefish Point and Thunder Bay, Ontario. Participants may start/finish at the location of their choosing. The official course length for all starting locations is a 615 nautical mile loop.