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Chika Saki Lighthouse

Oc White 10s🇯🇵Genkai, JPOperational

Location & Light Range

About Chika Saki Lighthouse

Chika Saki lighthouse stands on a promontory within the grounds of the Genkai Nuclear Power Plant in Genkai Town. This cylindrical concrete tower, painted white, reaches a height of 9.5 meters, with its light positioned 26 meters above sea level. The lighthouse emits a white light that is on for five seconds and off for five seconds, completing a cycle every 10 seconds. Its geographic range extends to 14.5 nautical miles. Access to the lighthouse and its site is restricted due to its location within the power plant's secure perimeter.

Why it matters: This lighthouse marks a promontory near the Genkai Nuclear Power Plant, providing a specific navigational reference for vessels in the area.

Light & Optic

Characteristic Signature
Oc White 10s
Flash Type
Occulting
Light Color
White
Interval
10s
Raw Code
Oc W 10s
Focal Height
26m
Geographic Range
14.5NM

Location

City
Genkai
Country
🇯🇵Japan
Region
Saga Prefecture
Sea Region
Located on a promontory within the grounds of the Genkai Nuclear Power Plant in Genkai Town, surrounded by Karatsu City.
Latitude
33.5180°
Longitude
129.8287°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
9.5m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round concrete tower

References & Identifiers

Nearest Port
Kariya(2.9 km)
ARLHS No.
JPN-804
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Frequently Asked Questions

How do mariners identify Chika Saki Lighthouse at night?+
Chika Saki displays the characteristic Oc White 10s. 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.
Which ports and harbors does Chika Saki Lighthouse guide vessels into?+
Chika Saki Lighthouse assists vessels approaching 5 nearby ports. The closest is Yobuko at 3.5 NM to the ENE. Other ports served include Tobo (5.6 NM ESE), Karatsu (7.2 NM ESE), Fukushima, Nagasaki (10.2 NM S), Imari (14.4 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Chika Saki Lighthouse still active and maintained?+
Yes, Chika Saki 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 Chika Saki Lighthouse?+
Chika Saki 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 Chika Saki Lighthouse?+
You can track vessels near Chika Saki 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.