Sister Bay Marina
Full-service marina · Green Bay / Lake Michigan
100 Harbor Dr, Door County, Wisconsin
Overview
Sister Bay Marina is a full-service marina in Door County, Wisconsin, with wet slips for vessels up to 60 feet. Positioned on Green Bay / Lake Michigan with access to Lake, Bay, Sister Bay Marina serves boaters working Door County peninsula loop and the broader Door County cruising area. The marina is configured for long-stay liveaboards, snowbird transients, and seasonal monthly tenants, with shore power, fresh water, and dockmaster support on site.
Door County's tight cluster of small protected harbors is the Midwest's premier short-hop summer cruising destination.
Location & waterway access
Waterway
Green Bay / Lake Michigan
Access
Lake, Bay
Typical water depth
12–25 ft MLW
Hurricane protection
Standard exposure
Dockage options
Includes wet slips, transient and monthly dockage, and liveaboard-approved slips.
Boat compatibility
Maximum LOA accommodated: 60 ft. Confirm beam, draft, and air clearance when reserving.
Amenities
- Fuel Dock
- Pump-Out
- Shore Power
- Wi-Fi
- Showers & Laundry
- Ship's Store
- Restaurant
Shore power & utilities
Transient, monthly & liveaboard
Transient docking
✓ Available
Overnight and weekly slips for cruising boaters.
Monthly slips
✓ Available
Monthly dockage typically $9 – $22 / ft / month (seasonal).
Liveaboard slips
✓ Available
Year-round liveaboard with marina approval.
Pricing guidance
- Monthly slip estimate
- $9 – $22 / ft / month (seasonal)
- Transient estimate
- $9 – $22 (transient nightly rates vary by season)
- Seasonality
- Peak June–September.
Pricing may vary by season, boat length, and electric metering. Contact marina for exact availability and pricing.
See the full wet slip pricing guide, monthly slip costs, and transient slip pricing.
Local boating context
Nearby boating destinations
- • Washington Island
- • Peninsula State Park
- • Cana Island
Popular cruising routes
- • Door County peninsula loop
- • Washington Island run
- • Mackinac via North Channel
Nearby fuel stops
- • Sister Bay fuel
- • Centerpointe fuel
Seasonality
Peak June–September.