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Otua Lighthouse

Fl W 5s🇵🇬Papua New Guinea (Bougainville Region), PGOperational

Location & Light Range

About Otua Lighthouse

The Otua lighthouse is a 75-meter tall, white, latticed concrete tower. Its focal height reaches 26 meters above sea level. The light emits a single white flash every 5 seconds. This characteristic is visible within an arc from 143 degrees to 359 degrees. The structure stands in the Bougainville Region of Papua New Guinea.

Light & Optic

Characteristic Signature
Fl W 5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5s
Raw Code
Fl.W. period 5s
Focal Height
26m
Geographic Range
14NM

Location

City
Papua New Guinea (Bougainville Region)
Country
🇵🇬PG
Latitude
-6.4586°
Longitude
155.9739°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
75m
Tower Shape
latticed
Tower Color
white
Material
concrete

Structure: White latticed tower; 75. Visible 143°-359°

References & Identifiers

Admiralty No.
K4886
NGA No.
10788
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Frequently Asked Questions

How do mariners identify Otua Lighthouse at night?+
Otua displays the characteristic Fl W 5s — 1 white flash 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 Otua Lighthouse guide vessels into?+
Otua Lighthouse assists vessels approaching 4 nearby ports. The closest is Kieta at 24.7 NM to the NW. Other ports served include Anewa Bay (29.7 NM WNW), Choiseul Bay (31 NM ESE), Shortland Harbour (38 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Otua Lighthouse still active and maintained?+
Yes, Otua 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 Otua Lighthouse?+
You can track vessels near Otua 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.