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Pulau Beras Basah Lighthouse

Fl (5) White 20s🇮🇩IDOperational

Location & Light Range

About Pulau Beras Basah Lighthouse

A square pyramidal metal tower with a gallery, enclosed with metal plates, stands 35 meters tall. Its focal plane is situated 36 meters above sea level. This structure emits five white flashes every 20 seconds, visible for a geographic range of 16.4 nautical miles. The lighthouse is located on the beach of Pulau Beras Basah, an island near the Equator. Following a period of disrepair by 2009, restoration efforts in 2011 returned the tower to good condition. While the island site is open to visitors, the tower itself remains closed.

Why it matters: The lighthouse marks a position near the Equator, assisting vessels navigating shipping lanes around Bontang.

Light & Optic

Characteristic Signature
Fl (5) White 20s
Flash Type
Flashing
Light Color
White
Flash Count
5 flashes
Interval
20s
Raw Code
Fl(5) W 20s
Focal Height
36m
Geographic Range
16.4NM

Location

Country
🇮🇩ID
Latitude
0.0642°
Longitude
117.5591°

References & Identifiers

Nearest Port
Bontang(6.3 km)
Admiralty No.
F2027
NGA No.
24808

Tower & Structure

Tower Height
35m
Tower Shape
square

Structure: square pyramidal metal tower with gallery, enclosed with metal plates

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Pulau Beras Basah Lighthouse at night?+
Pulau Beras Basah displays the characteristic Fl (5) White 20s — 5 white flashes every 20 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 color may indicate a specific sector or warning zone.
Which ports and harbors does Pulau Beras Basah Lighthouse guide vessels into?+
Pulau Beras Basah Lighthouse assists vessels approaching 5 nearby ports. The closest is Tanjung Merangas at 3.1 NM to the SW. Other ports served include Bontang, Kl (5.5 NM NNW), Santan Terminal, Kl (10.4 NM S), SANGATA (17.7 NM N), Muara Berau (20.3 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Pulau Beras Basah Lighthouse still active and maintained?+
Yes, Pulau Beras Basah 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 Pulau Beras Basah Lighthouse?+
You can track vessels near Pulau Beras Basah 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.