Marathon City Marina at Boot Key Harbor

Located in the heart of the Florida Keys, the City of Marathon Marina is a beloved stop for cruisers, families, and fishing crews seeking easy access to both the conveniences of town and the natural beauty of the Keys. Open daily from 8:00 AM to 5:00 PM, the marina offers over 200 mooring balls in Boot Key Harbor and a limited number of transient slips, accommodating vessels up to 60 feet. It’s an ideal harbor for sailboats, catamarans, and cruisers by brands like Lagoon, Jeanneau, Beneteau, and Sea Ray.

The City Marina is situated adjacent to the popular Rotary Park and Marathon Community Park sports complex, offering tennis courts, ball fields, a skate park, and walking paths—perfect for families and long-term cruisers with kids or pets. A short dinghy or bike ride brings you to local businesses such as Publix Super Market, West Marine, and Marathon Bagel Co. Dining options nearby include the waterfront Dockside Inn & Tropical Café, Lazy Days South, and Keys Fisheries.

Just minutes from Sombrero Reef, a world-renowned diving and snorkeling destination, the marina also hosts seasonal events, potlucks, and cruiser meetups—making it a social hub for snowbirds, fishing trips, and family reunions. The local public bus provides easy access to Key West and the mainland.

Open to public

Yes

Operating season

Year-round

Payment option

Credit, Debit

Amenities

Restrooms
Showers
Laundry
Grills / BBQ
WiFi
Dockside Water Hookup
Pump-out Station
Boat Slips / Docks
Floating Docks
Mooring Balls
Transient Dockage
Public Transit Nearby
Harbor Master / Dockmaster
VHF Radio Monitoring

Services

Pump-out Station
Haul-Out Service
Repair
Mechanical
Repair Diesel Engines
Repair Gas Engines
Storage

Navigation

Depth (low water):10
Tide:High Tide
Current:Weak

Notes

Access to the harbor is provided by two inlets from the Atlantic Ocean. The west entrance is generally considered the main entrance and has a controlling depth of 6-feet MLW, as does the rest of the channel within the harbor. To the south lies Sister Creek which meanders from the Atlantic Ocean into Boot Key Harbor. At a depth of 4.2-feet MLW, this inlet is popular with smaller or shallow-draft vessels. No fuel dock on-site

Dockage

Average price per day:$2.25 per foot
Total:14
Type:Floating
LOA Max:55
Dockage depth:10
Accessibility:AC Power 30A, AC Power 50A, Disability Access, Liveaboard Allowed

Notes

May 1 – October 31:$2.25 per foot per day.$12.75 per foot per week.$14.50 per foot per month.November 1 – April 30:$19.75 per foot per month.Plus tax.Includes access to showers and one pump out per week.Vessels wishing to dock in the City marina canal must contact the marina upon entry into Boot Key Harbor. Dockage is assigned on a first-come, first-served basis; there are no reservations. If all dockage is occupied, or a vessel is too large for the space available, customers may place their name on a waiting list by coming in-person to the Marina office. Assignments will be based on dockage availability and vessel length. Insurance coverage of at least $300,000 is required for overnight dockage in the City marina canal.