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Karang Ontario Lighthouse

Fl White 5s🇮🇩IDOperational

Location & Light Range

About Karang Ontario Lighthouse

Also known as: Karang Ontario (Ontario Reef)

Karang Ontario is a black column with a single red horizontal band, standing 33 meters tall. It is situated on a coral reef in the Karimata Strait. The lighthouse emits a white flash every 5 seconds from a focal height of 15 meters. Its geographic range is 11.9 nautical miles. The structure also features a black topmark. This lighthouse is located about 75.8 kilometers from Tanjung Pandan.

Why it matters: This lighthouse marks a safe shipping channel through the Karimata Strait, warning vessels away from the coral reef it occupies.

Light & Optic

Characteristic Signature
Fl White 5s
Flash Type
Flashing
Light Color
White
Interval
5s
Raw Code
Fl W 5s
Focal Height
15m
Geographic Range
11.9NM

Location

Country
🇮🇩ID
Latitude
-1.9967°
Longitude
108.6461°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
33m
Tower Color
black with one red horizontal band

Structure: ISOLATED DANGER (IALA A) Black column, red banded, black topmark; 33

References & Identifiers

Nearest Port
Tanjung Pandan(75.8 km)
Admiralty No.
Q1405.5
NGA No.
25058
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Frequently Asked Questions

How do mariners identify Karang Ontario Lighthouse at night?+
Karang Ontario displays the characteristic Fl White 5s. 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.
Is Karang Ontario Lighthouse still active and maintained?+
Yes, Karang Ontario 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 Ontario Lighthouse?+
You can track vessels near Karang Ontario 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.