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Otozu Kō West Breakwater Lighthouse

Fl Red 3s🇯🇵Oita, JPOperational

Location & Light Range

About Otozu Kō West Breakwater Lighthouse

This red, cylindrical concrete lighthouse stands 16 meters tall on the western breakwater of Otozu harbor in Oita Prefecture, Japan. Its lantern and gallery are situated atop the structure, which has a focal height of 18 meters. The light emits a single red flash every three seconds, visible for 12.7 nautical miles. This active aid to navigation is located approximately 1 kilometer from the nearest port, Oita. The tower is a functional element of the industrial harbor's infrastructure.

Why it matters: This lighthouse is essential for the safe navigation of commercial and industrial vessels entering and exiting Otozu harbor. Its red flash warns mariners of the western breakwater's end and guides them into the deep-water channels, ensuring the smooth flow of maritime traffic.

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

City
Oita
Country
🇯🇵Japan
Region
Oita Prefecture
Sea Region
The west breakwater of the industrial Otozu harbor in eastern Ōita.
Latitude
33.2772°
Longitude
131.6593°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
16m
Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: round cylindrical concrete tower with lantern and gallery

References & Identifiers

Nearest Port
Oita(1.0 km)
Admiralty No.
M4947.7
NGA No.
9364
ARLHS No.
JPN-2326
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Frequently Asked Questions

How do mariners identify Otozu Kō West Breakwater Lighthouse at night?+
Otozu Kō West Breakwater 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 Otozu Kō West Breakwater Lighthouse guide vessels into?+
Otozu Kō West Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Oita at 1.7 NM to the SSE. Other ports served include Beppushinko (7.5 NM WNW), Beppu, Oita (7.5 NM WNW), Hiji (7.5 NM WNW), Morie (8.2 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Otozu Kō West Breakwater Lighthouse still active and maintained?+
Yes, Otozu Kō West Breakwater 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 Otozu Kō West Breakwater Lighthouse?+
Otozu Kō West Breakwater Lighthouse is located within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Otozu Kō West Breakwater Lighthouse?+
You can track vessels near Otozu Kō West Breakwater 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.