Opitz Boat Ramp is a primitive public access point on Opitz Lake featuring a basic boat launch with a landing dock, located 5 miles west and 1 mile south of Eden, South Dakota.

High water conditions have limited public access to this single site, making it the primary launch point for the 1,436-acre lake. The ramp provides access to a well-managed fishery in a scenic agricultural area spanning Day and Marshall Counties.