Lewis & Clark Marina is the largest marina within 400 miles, offering 400+ boat slips, fuel dock, pump-out station, full marine service, boat rentals (pontoons, powerboats, fishing boats), and a convenience store on the 25-mile Lewis and Clark Lake.

The facility provides four boat ramps for easy water access and is adjacent to Gavins Point Dam with nearby camping and recreation areas. A South Dakota state park sticker is required for access.