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Oki Se Lighthouse

Fl Red 3s🇯🇵Shima, JPOperational

Location & Light Range

About Oki Se Lighthouse

Also known as: Oki Se (Yaeya Kō)

The Oki Se Lighthouse stands on a submerged reef within Matoya Bay, Japan. Constructed of concrete, its cylindrical tower reaches 11 meters in height, with the light positioned 12 meters above sea level. The tower features a distinctive round barbell shape and is painted red. It emits a single red flash every three seconds, with a geographic range of 11 nautical miles. The lighthouse's site is open to visitors, though the tower itself remains closed to the public. It is located near the port of Matoya, approximately 1 kilometer away.

Why it matters: This lighthouse is essential for safe navigation in Matoya Bay, specifically marking a reef hazard for local fishing and aquaculture vessels.

Light & Optic

Characteristic Signature
Fl Red 3s
Flash Type
Flashing
Light Color
Red
Interval
3s
Raw Code
Fl R 3s
Focal Height
12m
Geographic Range
11NM

Location

City
Shima
Country
🇯🇵Japan
Region
Mie Prefecture
Sea Region
Matoya Bay, marking a reef
Latitude
34.3708°
Longitude
136.8776°

References & Identifiers

Nearest Port
Matoya(1.0 km)
Admiralty No.
M6042.6
NGA No.
6368
USCG No.
JCG-2776

Tower & Structure

Tower Height
11m
Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: round barbell-shaped concrete tower

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 Oki Se Lighthouse at night?+
Oki Se 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 Oki Se Lighthouse guide vessels into?+
Oki Se Lighthouse assists vessels approaching 5 nearby ports. The closest is Matoya at 1 NM to the ESE. Other ports served include Toba (6.8 NM NNW), Hamajima (7.4 NM SW), Suga (7.8 NM N), Gokasho (9.1 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Oki Se Lighthouse still active and maintained?+
Yes, Oki Se 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 Oki Se Lighthouse?+
Oki Se 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 Oki Se Lighthouse?+
You can track vessels near Oki Se 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.