Sister Bay Marina

Sister Bay Marina on Wisconsin's Door County peninsula holds 48 seasonal slips at the head of Sister Bay — 11 ft channel depth, a 50-ft vessel-length cap, and 2 public boat ramps that serve the Lake Michigan trailerable fishing fleet running smallmouth bass and yellow perch from May through October. The marina's seasonal calendar runs May 1 through October 15 with the fuel dock winterizing by Halloween against the lake-effect snow window. Peninsula State Park 7 miles south on WI-42 (469 campsites across 4 loops, electric on 2 loops, 45-ft rig cap) is the closest state-managed RV basecamp and one of the most-reserved state parks in Wisconsin — book through reservewisconsin.com 11 months ahead for July–August weekends. The marina lot itself is car-only with strict 4-hour day-use limits. Trailer parking moves to the overflow lot on Bay Shore Drive (3 blocks east) at $10 per day.