Boomsite Marina offers immediate access to the islands area of the St. Croix River that are noted for their exceptional boating and camping opportunities. The Boomsite is nestled in an idyllic setting North of historic Stillwater, Minnesota. Here you can relax on quite and serene sandy beaches, surrounded by lush green views transforming to gorgeous autumn colors in the fall. 90 Slips that accomodate boats up to 35 feet Slip prices vary by location and size. Please contact us for pricing and availability. Winter storage is available at several of our locations (both indoor and outdoor).