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Pulau Satu Lighthouse

Fl Red 3s🇮🇩IDOperational

Location & Light Range

About Pulau Satu Lighthouse

Also known as: Pulau Satu (Pulau Sarena)

This lighthouse features a white and red barbell-shaped tower standing 15 meters tall, with its light positioned 18 meters above sea level. It is mounted on a platform supported by piles and situated on a small island. The light emits a red flash every 3 seconds, visible for 12.7 nautical miles. Access to the site is possible by boat, though the tower itself is closed to the public. The nearest port is Bitung, located 2.3 kilometers away.

Why it matters: The lighthouse warns vessels navigating the waters northeast of Bitung about the island hazard of Pulau Satu. Its distinctive barbell shape makes it a recognizable navigational aid.

Light & Optic

Characteristic Signature
Fl Red 3s
Flash Type
Flashing
Light Color
Red
Interval
3s
Raw Code
Fl R 3s
Focal Height
18m
Geographic Range
12.7NM

Location

Country
🇮🇩ID
Latitude
1.4626°
Longitude
125.2275°

References & Identifiers

Nearest Port
Bitung(2.3 km)
Admiralty No.
F2078
NGA No.
25160

Tower & Structure

Tower Height
15m
Tower Color
white and red

Structure: red barbell-shaped tower mounted on a platform supported by piles

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 Satu Lighthouse at night?+
Pulau Satu displays the characteristic Fl Red 3s. 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Pulau Satu Lighthouse guide vessels into?+
Pulau Satu Lighthouse assists vessels approaching 3 nearby ports. The closest is Bitung, Sulawesi at 2.7 NM to the SW. Other ports served include Manado (23.6 NM W), Amurang (42.8 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Pulau Satu Lighthouse still active and maintained?+
Yes, Pulau Satu 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 Satu Lighthouse?+
You can track vessels near Pulau Satu 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.