McCuddy's Big Oak Marina, located 6 miles west of the Sauvie Island Bridge off Highway 30 on Multnomah Channel, offers boat ramp access along with 25 houseboat/boathouse slips and open slips for recreational power and sailboats.

The facility features secure gated parking, restrooms, showers, and new 40-foot covered slips with 50-amp electric service, making it convenient for both day-use boaters and those seeking moorage in a scenic country setting.