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Merapas Lighthouse

Fl (3) W 5s🇮🇩Riau Islands, IDOperational

Location & Light Range

About Merapas Lighthouse

Also known as: Merapas Lighthouse

This white metal framework tower stands 131 meters high. The light source is positioned at a focal height of 121 meters. It displays three white flashes at 5-second intervals. The lighthouse has a geographic range of 22 nautical miles.

Light & Optic

Characteristic Signature
Fl (3) W 5s
Flash Type
Flashing
Light Color
White
Flash Count
3 flashes
Interval
5s
Raw Code
Fl.(3)W. period 5s
Focal Height
121m
Geographic Range
22NM

Location

City
Riau Islands
Country
🇮🇩ID
Latitude
0.9331°
Longitude
104.9198°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
131m
Tower Color
white
Material
metal

Structure: White metal framework structure; 131

References & Identifiers

Admiralty No.
F1809
NGA No.
22694
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Frequently Asked Questions

How do mariners identify Merapas Lighthouse at night?+
Merapas displays the characteristic Fl (3) W 5s — 3 white flashes 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 Merapas Lighthouse guide vessels into?+
Merapas Lighthouse assists vessels approaching 5 nearby ports. The closest is KIJANG at 18.5 NM to the WSW. Other ports served include Tanjungpinang (28.8 NM W), Lobam (39.4 NM W), Tanjunguban (41.8 NM W), TANJUNG UBAN (43 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Merapas Lighthouse still active and maintained?+
Yes, Merapas 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.
What shipping routes pass near Merapas Lighthouse?+
Merapas Lighthouse is located within the Strait of Malacca — the primary shipping route between the Indian and Pacific Oceans, carrying over 25% of global traded goods. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Merapas Lighthouse?+
You can track vessels near Merapas 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.