Overview
Garrison Bight lies on the north side of Key West, away from the bustle of the Historic Seaport. The City Marina has 245 slips on both sides of the Palm Avenue causeway. North of it, between Fleming Key and Sigsbee Park, the city runs a mooring field of 149 balls – expanded from 81 – for boats up to 50 ft with dinghies up to 13 ft.
Inside the Bight the speed limit is 5 mph, and anchoring or mooring anywhere other than the field is not permitted except in an emergency.
Approach
The marked Garrison Bight Channel leads from Man of War Harbor round the north end of Fleming Key, then south and east to Trumbo Point. The Coast Pilot last reported a controlling depth of 6 ft in 2012 and 7.5 ft in the turning basin – check the current chart before you rely on it.
Fleming Key Cut is a shortcut for small boats: unmarked, about 6 ft, with very strong current, and under a fixed bridge with 18 ft vertical clearance. The Palm Avenue causeway bridge into the south-west part of the Bight is fixed at 19 ft. An overhead power cable crosses the entrance at 50 ft and elsewhere at 34 ft.
Taking a mooring
Bring your documentation or title, registration, dinghy registration and proof of liability insurance. Cruisers report that balls with a small extra buoy belong to annual renters; pick up an empty one and pay at the office.
The county's free mobile pump-out (On The Hook Marine, 305-833-1978) serves the field – fly the orange flag. Cruiser reports describe the field as exposed to northerlies, one from December 2021 with 4–6 ft of swell.
Facilities
- Shore power30/50 A
- Waterat the marina
- Showers & laundryat the marina
- Pump-outmarina; free boat in the field
- Security24 hours
Good to know
- Cancellations: at least 48 hours ahead by email to the dockmaster; a no-show is declared at 3 pm, check-out is at 11 am.
- Going ashore from the field: the Garrison Bight dinghy dock is for mooring renters. Many use the Key West Bight dinghy dock instead, closer to Old Town.
- Tides: the nearest NOAA station is 8724542, Sigsbee Park in the Garrison Bight Channel.
Questions sailors ask
How much is a mooring in Garrison Bight?
$25.64 a night or $450.98 a month, tax included, according to the City of Key West. Boats up to 50 ft, dinghies up to 13 ft.
What clearance do the bridges have?
The Fleming Key bridge over Fleming Key Cut is fixed at 18 ft, the Palm Avenue causeway bridge at 19 ft. Taller boats use the marked Garrison Bight Channel round the north end of Fleming Key, where an overhead cable crosses the entrance at 50 ft.
Can I anchor in Garrison Bight?
Not inside the Bight: the Coast Pilot says anchoring or mooring there is not permitted except in an emergency. FWC has designated Garrison Bight Flats and Fleming Key nearby as anchoring areas, and Monroe County's 90-day rule applies.
Sources & checks
- City of Key West – Mooring field · 21 Oct 2026
- City of Key West – Facility: Mooring field · 21 Oct 2026
- City Marina at Garrison Bight · 21 Oct 2026
- City Marina at Garrison Bight – Rates (effective 1 Oct 2026) · 21 Oct 2026
- NOAA U.S. Coast Pilot 5, chapter 4 (2026) · 18 Oct 2026
- Monroe County – Vessel pump-out services
- NOAA CO-OPS station 8724542, Sigsbee Park · 21 Oct 2026