Brother's Island Marina
Reserve

Slips · dry storage · launch ramp

Cast off from
your home dock.

Sheltered moorage on Sevenmile Slough is your launch into one thousand miles of waterway. Berth your boat for the season, store it between trips, or back down the ramp and go. Rates depend on size and season — the best way to get a quote is to call.

Survey of the marina

Find your berth on the original plan.

This is the marina as it was drawn — the docks on Sevenmile Slough, the launch ramp, and the bridge off West Brannan Island Road. Mark the slip or island site you want and we'll come back with rates.

The marina, drawn

Reserve a slip or a site.

Hand-drawn plan of Brother's Island Marina — docks on Sevenmile Slough, the launch ramp, and the camping island
Boat slips Island camping
5 docks · 2 island areas

On the water.

Call for rates

Wet slips

Covered & open berths

Sheltered moorage on Sevenmile Slough with shore power. Sized for your boat.

Monthly · seasonal

Dry storage

Trailered & on-the-hard

Keep the boat, trailer, or RV on site between trips.

Short & long term

Launch ramp

Public access

Ample trailer parking and an easy ramp into the channel.

Year round

Guest moorage

Visiting boaters

Tie up when you cruise in off the main Delta. First come, first served.

Day & overnight

Bringing your own boat

  • Sheltered moorage out of the wind
  • Shore power at the slips
  • Trailer parking by the ramp
  • Easy in-and-out to the channels

Good to know

  • Open year round
  • ≈ 90 min from San Francisco
  • Just off West Brannan Island Rd.
  • Quiet, no-wake water in the slough

Ready to find your slip?

Sheltered moorage on the Delta — call to check availability.

916-777-6084 Mark a slip on the plan  →