Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Karang Grogot Lighthouse

Fl White 8s🇮🇩IDOperational

Location & Light Range

About Karang Grogot Lighthouse

This black and red structure reaches 49 meters in height, with its light located 15 meters above sea level. The light displays a white flash every 8 seconds, identifying a submerged hazard. The beacon itself is a black tower with red bands and a black topmark, rising from the water on piles, with a platform at its base. Its light can be seen up to 11.9 nautical miles away. It is classified as an isolated danger marker (IALA A).

Why it matters: This marker warns vessels of the Karang Grogot shoal, an obstruction situated in the shipping routes southeast of Tanjung Pamukan, serving as a reference point for vessels heading to the North Pulau Laut Coal Terminal.

Light & Optic

Characteristic Signature
Fl White 8s
Flash Type
Flashing
Light Color
White
Interval
8s
Raw Code
Fl W 8s
Focal Height
15m
Geographic Range
11.9NM

Location

Country
🇮🇩ID
Latitude
-2.7277°
Longitude
116.7585°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
49m
Tower Color
black and red

Structure: ISOLATED DANGER (IALA A) Black beacon, red banded, black topmark; 49

References & Identifiers

Nearest Port
North Pulau Laut Coal Terminal(40.2 km)
Admiralty No.
Q1447
NGA No.
24940
Live tracking · 50,000+ mariners

Find Karang Grogot Lighthouse on the live nautical map

Plan voyages near ID, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

Frequently Asked Questions

How do mariners identify Karang Grogot Lighthouse at night?+
Karang Grogot displays the characteristic Fl White 8s. 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 Karang Grogot Lighthouse guide vessels into?+
Karang Grogot Lighthouse assists vessels approaching 5 nearby ports. The closest is Tanjung Pemancingan at 40.6 NM to the SW. Other ports served include North Pulau Laut (41.6 NM SW), KOTABARU (46 NM SW), Setagin (48.7 NM SW), Pulau Laut (49.4 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Karang Grogot Lighthouse still active and maintained?+
Yes, Karang Grogot 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 Karang Grogot Lighthouse?+
You can track vessels near Karang Grogot 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.