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Mizushima Kō West Breakwater Lighthouse

Fl (2) Green 5s🇯🇵Kurashiki, JPOperational

Location & Light Range

About Mizushima Kō West Breakwater Lighthouse

This concrete lighthouse is a cylindrical structure standing 10 meters tall, with its light positioned at a focal height of 13 meters. It features a round, hourglass-shaped tower attached to a small equipment shelter. The light emits a single green flash every 5 seconds and has a geographic range of 11.3 nautical miles. Located on a breakwater at the west side of Mizushima harbor's main entrance near Kurashiki, it is situated 2.1 kilometers from the nearest port. This operational aid is part of the navigational infrastructure for Okayama Prefecture.

Why it matters: The lighthouse is essential for guiding commercial and industrial shipping into and out of Mizushima harbor. Its green flashes clearly mark the western edge of the main channel, a critical function for preventing accidents in this high-traffic area.

Light & Optic

Characteristic Signature
Fl (2) Green 5s
Flash Type
Flashing
Light Color
Green
Flash Count
2 flashes
Interval
5s
Raw Code
Fl G 5s
Focal Height
13m
Geographic Range
11.3NM

Location

City
Kurashiki
Country
🇯🇵Japan
Region
Okayama Prefecture
Sea Region
Mizushima harbor, on a breakwater on the west side of the main entrance.
Latitude
34.4687°
Longitude
133.7336°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round hourglass-shaped concrete tower attached to a small equipment shelter

References & Identifiers

Nearest Port
Mizushima(2.1 km)
Admiralty No.
M5733
NGA No.
8272
ARLHS No.
JPN-1901
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Frequently Asked Questions

How do mariners identify Mizushima Kō West Breakwater Lighthouse at night?+
Mizushima Kō West Breakwater displays the characteristic Fl (2) Green 5s — 2 green flashes every 5 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. The green color may indicate a specific sector or warning zone.
Which ports and harbors does Mizushima Kō West Breakwater Lighthouse guide vessels into?+
Mizushima Kō West Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Mizushima at 2.4 NM to the NNW. Other ports served include Tamashima (3.4 NM WNW), Shimotsui (3.7 NM ESE), Kotoura (5.1 NM E), Asakuchi (8 NM WNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Mizushima Kō West Breakwater Lighthouse still active and maintained?+
Yes, Mizushima 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 Mizushima Kō West Breakwater Lighthouse?+
Mizushima 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 Mizushima Kō West Breakwater Lighthouse?+
You can track vessels near Mizushima 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.