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Aki Eno Shima Lighthouse

Fl W 4s🇯🇵Okayama and Hiroshima, JPOperational

Location & Light Range

About Aki Eno Shima Lighthouse

Aki Eno Shima is a 23-meter tall latticed concrete tower located between Okayama and Hiroshima. It displays a red and white rectangular daymark to aid in identification. The lighthouse emits a single white flash every 4 seconds. Its focal height is 49 meters above sea level, with a geographic range of 7 nautical miles. The structure is painted white and red.

Light & Optic

Characteristic Signature
Fl W 4s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
4s
Raw Code
Fl.W. period 4s
Focal Height
49m
Geographic Range
7NM

Location

City
Okayama and Hiroshima
Country
🇯🇵JP
Latitude
34.2888°
Longitude
132.3635°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
23m
Tower Shape
latticed
Tower Color
white and red
Material
concrete

Structure: Latticed tower, red and white rectangular daymark; 23

References & Identifiers

Admiralty No.
M5681
NGA No.
8984
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Frequently Asked Questions

How do mariners identify Aki Eno Shima Lighthouse at night?+
Aki Eno Shima displays the characteristic Fl W 4s — 1 white flash every 4 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 Aki Eno Shima Lighthouse guide vessels into?+
Aki Eno Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Itsukushima at 2.2 NM to the WNW. Other ports served include Mitaka, Hiroshima (2.7 NM SE), Hiroshima (4.5 NM NE), Chitose, Hiroshima (6.3 NM NE), Fukae, Hiroshima (6.3 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Aki Eno Shima Lighthouse still active and maintained?+
Yes, Aki Eno 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 Aki Eno Shima Lighthouse?+
Aki Eno 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 Aki Eno Shima Lighthouse?+
You can track vessels near Aki Eno 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.