Korth's Pirates Lair Marina offers a sheltered self-service boat launch ramp open 24/7 with ample parking for vehicles and trailers ($20 single boat/jet ski, $10 kayaks, $150 annual pass).

Located at the confluence of the San Joaquin and Mokelumne Rivers near Isleton, the facility provides additional amenities including fuel dock, pump-out station, guest docking, and a cafe, with office hours daily 8:30am-5pm.