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Kozuti Shima Lighthouse

Oc White 6s🇯🇵Takamatsu, JPOperational

Location & Light Range

About Kozuti Shima Lighthouse

This concrete lighthouse stands 13 meters tall, with its light positioned 15 meters above sea level. The cylindrical white tower marks the northern tip of an island situated off the coast of Shikoku, Japan. Its geographic range is 11.9 nautical miles. The light emits a single white flash every 6 seconds. It is located approximately 12 kilometers northeast of Sakaide and 12 kilometers northwest of Takamatsu.

Why it matters: This aid to navigation is important for local maritime traffic navigating the Seto Inland Sea, marking the northern tip of an island off Shikoku and helping to prevent groundings in a region with numerous islands and busy shipping lanes.

Light & Optic

Characteristic Signature
Oc White 6s
Flash Type
Occulting
Light Color
White
Interval
6s
Raw Code
Oc W 6s
Focal Height
15m
Geographic Range
11.9NM

Location

City
Takamatsu
Country
🇯🇵Japan
Region
Kagawa Prefecture
Sea Region
Northern tip of an island just off the mainland of Shikoku, about 12 km northeast of Sakaide and 12 km northwest of Takamatsu.
Latitude
34.3964°
Longitude
133.9225°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
13m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round cylindrical concrete tower

References & Identifiers

Nearest Port
Kisawa(1.0 km)
ARLHS No.
JPN-2450
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Frequently Asked Questions

How do mariners identify Kozuti Shima Lighthouse at night?+
Kozuti Shima displays the characteristic Oc White 6s. 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 Kozuti Shima Lighthouse guide vessels into?+
Kozuti Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Hibi at 3.5 NM to the N. Other ports served include Shibukawa (3.8 NM NNW), Tamano (4.6 NM N), Sakaide (4.7 NM SW), Naoshima (5 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kozuti Shima Lighthouse still active and maintained?+
Yes, Kozuti Shima 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 Kozuti Shima Lighthouse?+
Kozuti Shima 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 Kozuti Shima Lighthouse?+
You can track vessels near Kozuti Shima 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.