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Kakaji Lighthouse

Iso W 8s🇯🇵Seto Naikai Western, JPOperational

Location & Light Range

About Kakaji Lighthouse

This lighthouse features a cylindrical metal tower standing 12 meters high. Its exterior is painted white and green, and it has a square daymark. The light source is positioned 24 meters above sea level. It emits an isophase white light that repeats its cycle every 8 seconds. The lighthouse has a nominal range of 5 nautical miles.

Light & Optic

Characteristic Signature
Iso W 8s
Flash Type
Isophase
Light Color
White
Flash Count
1 flash
Interval
8s
Raw Code
Iso.W. period 8s
Focal Height
24m
Light Range
5NM (9.3 km)
Geographic Range
5NM

Location

City
Seto Naikai Western
Country
🇯🇵JP
Latitude
33.6841°
Longitude
131.5228°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
12m
Tower Shape
cylindrical
Tower Color
white and green
Material
metal

Structure: Cylindrical mast, green and white square daymark; 12

References & Identifiers

Admiralty No.
M4974
NGA No.
9700
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Frequently Asked Questions

How far offshore can Kakaji Lighthouse be seen?+
With a focal height of 24 meters and a nominal range of 5 nautical miles (approximately 9.3 km), Kakaji is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. As a shorter-range light, it primarily serves nearshore and coastal traffic.
How do mariners identify Kakaji Lighthouse at night?+
Kakaji displays the characteristic Iso W 8s — 1 white flash every 8 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 Kakaji Lighthouse guide vessels into?+
Kakaji Lighthouse assists vessels approaching 5 nearby ports. The closest is Imi at 3.8 NM to the E. Other ports served include Himeshima (6.6 NM ENE), Kumage (6.6 NM E), Togi (10.8 NM ESE), Kunisaki (13.1 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kakaji Lighthouse still active and maintained?+
Yes, Kakaji 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 Kakaji Lighthouse?+
Kakaji 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 Kakaji Lighthouse?+
You can track vessels near Kakaji 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.