William O'Brien State Park Camper Cabins
Marine on St. Croix, MN
About this stay
William O'Brien State Park, on the St. Croix River near Marine on St. Croix and a popular escape from the Twin Cities, offers five camper cabins. Marine Mills, Arcola, and Vasa cabins are wheelchair accessible, available year-round, and accommodate five people each. Otisville sleeps six and is also available year-round. Copas accommodates five, is not heated, and is available only April 1 through October 30. The cabins are rustic one-room wooden units with bunk beds and mattresses, a table, and benches, with outdoor fire rings and picnic tables for cooking; there is no indoor plumbing. No smoking, pets, or additional shelters are allowed at any of the camper cabins.
Location
Details can change — always confirm with the property before traveling. Last verified July 2026.
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