Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Seahorse Reef Lighthouse

Fl White 6s🇺🇸USOperational

Location & Light Range

About Seahorse Reef Lighthouse

Seahorse Reef Light is a 9.5-meter-tall skeletal tower situated on a pile-supported platform. Its focal plane is also at 9.5 meters, and it emits a white light with a single flash every 6 seconds. This structure replaced a taller tower that was destroyed by a storm in March 1993. The navigational aid is located on the outer edge of a reef, southwest of the Cedar Keys lighthouse. The site is open to the public, though the tower itself is closed.

Why it matters: This light marks the outer edge of a reef south of Cedar Keys, which is a navigational hazard.

Light & Optic

Characteristic Signature
Fl White 6s
Flash Type
Flashing
Light Color
White
Interval
6s
Raw Code
Fl W 6s
Focal Height
9.5m
Geographic Range
10.2NM

Construction & History

Significant events: Taller tower destroyed by storm in March 1993

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
9.5m
Tower Shape
skeletal

Structure: A 9.5m square skeletal tower with a focal plane of 9.5m, mounted on a platform supported by piles.

Location

Country
🇺🇸United States
Region
Florida
Sea Region
Outer edge of a reef, south southwest of Cedar Keys lighthouse
Latitude
29.0964°
Longitude
-83.0653°

References & Identifiers

Nearest Port
Crystal River(20.4 km)
Admiralty No.
J3286
USCG No.
3-1615
ARLHS No.
USA-745
Live tracking · 50,000+ mariners

Find Seahorse Reef Lighthouse on the live nautical map

Plan voyages near United States, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

Frequently Asked Questions

How do mariners identify Seahorse Reef Lighthouse at night?+
Seahorse Reef displays the characteristic Fl White 6s. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area. The white color may indicate a specific sector or warning zone.
Which ports and harbors does Seahorse Reef Lighthouse guide vessels into?+
Seahorse Reef Lighthouse assists vessels approaching 5 nearby ports. The closest is CEDAR KEY at 2.9 NM to the NE. Other ports served include CRYSTAL RIVER (20.7 NM ESE), RIVERHAVEN (30 NM SE), Dunnellon (32.5 NM E), Sterling (42.3 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Seahorse Reef Lighthouse still active and maintained?+
Yes, Seahorse Reef Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
How can I track vessels near Seahorse Reef Lighthouse?+
You can track vessels near Seahorse Reef Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.