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Denis Island Lighthouse

Fl W 5s🇸🇨Seychelles, SCOperational

Location & Light Range

About Denis Island Lighthouse

Constructed from metal, the Denis Island Lighthouse stands 27 meters tall. Its focal plane reaches 37 meters above sea level. The white tower was built and first lit in 1910. It emits a single white flash every 5 seconds, visible for 10 nautical miles. This structure is registered under the NGA list number 32844 and the Admiralty number D6860.

Light & Optic

Characteristic Signature
Fl W 5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5s
Raw Code
Fl.W. period 5s
Focal Height
37m
Geographic Range
10NM

Construction & History

Year Built
1910

References & Identifiers

Admiralty No.
D6860
NGA No.
32844
Wikidata
Q106246597 →

Tower & Structure

Tower Height
27m
Tower Color
white
Material
metal

Structure: White metal tower; 89. COMOROS MAURITIUS

Location

City
Seychelles
Country
🇸🇨SC
Latitude
-3.7987°
Longitude
55.6666°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Denis Island Lighthouse at night?+
Denis Island displays the characteristic Fl W 5s — 1 white flash every 5 seconds. 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.
Which ports and harbors does Denis Island Lighthouse guide vessels into?+
Denis Island Lighthouse assists vessels approaching 1 nearby port. The closest is PRASLIN at 32.8 NM to the S. Mariners should consult the relevant chart for full approach and pilotage information.
Is Denis Island Lighthouse still active and maintained?+
Yes, Denis Island 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 Denis Island Lighthouse?+
You can track vessels near Denis Island 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.