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Square Rock Lighthouse

Fl White 15s🇮🇳INOperational

Location & Light Range

About Square Rock Lighthouse

This cylindrical concrete tower stands 10 meters tall on a rock located off the south point of Sound Island and on the north side of the Mayabunder entrance. The lighthouse emits a white flash every 15 seconds, with its light visible for 11.3 nautical miles. It occupies a solitary rock which serves as a navigational hazard, warning vessels of its presence. Access to this structure, situated 76.1 kilometers from Port Blair, is only possible by boat due to its exposed location. Its functional design emphasizes its role in maritime safety.

Why it matters: The lighthouse marks a submerged rock, defining the safe channel for local fishing and cargo vessels entering Mayabunder from the north.

Light & Optic

Characteristic Signature
Fl White 15s
Flash Type
Flashing
Light Color
White
Interval
15s
Raw Code
Fl W 15s
Focal Height
13m
Geographic Range
11.3NM

Location

Country
🇮🇳India
Sea Region
a rock off the south point of Sound Island and on the north side of the entrance to Mayabunder
Latitude
12.9280°
Longitude
92.9783°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Material
concrete

Structure: square cylindrical concrete tower

References & Identifiers

Nearest Port
Port Blair(76.1 km)
Admiralty No.
F1202.4
NGA No.
26548
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Frequently Asked Questions

How do mariners identify Square Rock Lighthouse at night?+
Square Rock displays the characteristic Fl White 15s. 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 Square Rock Lighthouse guide vessels into?+
Square Rock Lighthouse assists vessels approaching 2 nearby ports. The closest is Cornwallis at 22.2 NM to the NNE. Other ports served include Elphinstone Harbour (38.4 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Square Rock Lighthouse still active and maintained?+
Yes, Square Rock 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 Square Rock Lighthouse?+
You can track vessels near Square Rock 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.