• Interactive tide charts
• Marine Prediction Center
• National Data Buoy Center Nantucket Station
• National Hurricane Center
• Jenifer Clark Gulf Stream Information
• Weather Underground
• National Weather Service (Conditions at the Airport)
• 1st Coast Guard District Local Notice to Mariners
• Naval Atlantic Meteorology And Oceanography Center

The Nantucket Marine Department is located on the Town Pier, and provides:

• Mooring permits (residential)
• Recreational shellfish permits
• Commercial shellfish permits
• Boat registration/titling Forms (to be registered through mail or in person in Hyannis)
• State fishing permits
• Slips issued May 1st to Oct 15th to individuals by lottery held in the last week in April
• Some transient dockage available for boats under 30', no sleeping aboard
• Fresh water for boaters
• Dumpster (in season for boaters only)
• Recyclable area
• Free bathroom/shower facilities for boaters
• Ice for sale
• Free pumpouts for boaters
• Pay phones

The Nantucket Boat Basin is located on Straight Wharf, Old South Wharf, and Swain's Wharf and provides:

• 240 slips
• Electricity and telephone hookups
• Showers
• Restrooms
• Laundry facilities
• Ice
• Fuel
• Free pump-outs

Please see our shellfishing regulations page.

Please see our mooring regulations page.

• Lifejackets: Massachusetts state law requires that all children under 12 and all non-swimmers wear Type 1, II, or III lifejackets and that there is one for every passenger on board at all times.
• Anchor
• Pump
• Oar (preferably 2)
• Fire extinguisher
• Whistle or horn, and a bell

As of August 17, 1992, Nantucket Harbor is a Federal No-Discharge Zone. You cannot dump sewage, treated or untreated, into the harbor. You must use a holding tank or port-a-potty. For information on getting pumped out, contact the Nantucket Marine Department.

The Nantucket Boat Basin accepts marine hazardous waste materials, including used oil, oil filters, oily rags, etc. Drop-off is at the Dockmaster's office on Swain's Wharf. There is a small fee.