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Sunk Rock Lighthouse

Fl (2) White/Red 6s🇮🇳INOperational

Location & Light Range

About Sunk Rock Lighthouse

Constructed in 1884, the Sunk Rock Lighthouse is a 22-meter cylindrical stone tower standing 20 meters above sea level. It is painted in a red and yellow checkerboard pattern and features a round tower with a gallery mounted on a stone pier. The lighthouse emits two white flashes followed by red flashes every six seconds, a pattern that previously served as a warning and navigational aid. Its lantern was removed by 2010. Located about 5.8 km from Mumbai, it lies approximately 2.5 km southeast of the Gateway of India.

Why it matters: The lighthouse marks the Sunk Rock, a submerged hazard near Mumbai's busy shipping lanes. It also serves as a turnaround point for swimming races held between the lighthouse and the Gateway of India.

Light & Optic

Characteristic Signature
Fl (2) White/Red 6s
Flash Type
Flashing
Light Color
White/Red
Flash Count
2 flashes
Interval
6s
Raw Code
Fl(2) W R 6s
Focal Height
20m
Geographic Range
13.2NM

Construction & History

Year Built
1884

Significant events: lantern removed, plans announced for restoration and tourism development in 2017, plans under review and negotiation

References & Identifiers

Nearest Port
Mumbai(5.8 km)
Admiralty No.
F0516
NGA No.
27956
ARLHS No.
IND-008

Tower & Structure

Tower Height
22m
Tower Shape
cylindrical
Tower Color
in a red and yellow checkerboard pattern
Material
stone

Structure: round tower with gallery, mounted on a stone pier

Location

Country
🇮🇳India
Sea Region
about 2.5 km southeast of the Gateway to India, Mumbai waterfront
Latitude
18.8897°
Longitude
72.8325°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Sunk Rock Lighthouse at night?+
Sunk Rock displays the characteristic Fl (2) White/Red 6s — 2 white/red flashes every 6 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. The white/red color may indicate a specific sector or warning zone.
Which ports and harbors does Sunk Rock Lighthouse guide vessels into?+
Sunk Rock Lighthouse assists vessels approaching 5 nearby ports. The closest is Mumbai (ex Bombay) at 3.3 NM to the NNE. Other ports served include Uran (5.7 NM E), Karanja (7.5 NM ESE), Nhava Sheva (Jawaharlal Nehru) (7.5 NM ENE), Nhave (8.4 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sunk Rock Lighthouse still active and maintained?+
Yes, Sunk 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 Sunk Rock Lighthouse?+
You can track vessels near Sunk 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.