Mariner Square Marina

Mariner Square is the first marina in Alameda as you enter the Oakland/Alameda Estuary and is comprised of approximately 50 wet slips that range in size from 40 feet to 150 feet in length. With a mixture of recreational and live-aboards, the marina is a small community of boaters that enjoys our convenient location.


  • Complimentary Parking
  • Restrooms, Showers and Laundry on site
  • Free Wifi
  • Restaurant on premises
  • Electrical hookup at each slip – 30 and 50 amp
  • Water hookup at each slip
  • Individual, lockable dock boxes
  • Pumpout dock