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Megi Shima Lighthouse

Oc White 6s🇯🇵Takamatsu, JPOperational

Location & Light Range

About Megi Shima Lighthouse

Also known as: Megi Shima (Hotsuchi Hana)

Megi Shima lighthouse began operation in 1956 on the southern tip of its namesake island. The structure is a 10-meter-tall, round, cylindrical tower made of white fiberglass. Its light emits a single white flash every 6 seconds from a focal height of 46 meters. The geographic range of the light is 18.1 nautical miles. The lighthouse site is open to visitors, though the tower itself is closed to the public. Access is via a short hiking trail from the island's coast.

Why it matters: This lighthouse is important for guiding vessels navigating the southern approaches to Megi Island within the Seto Inland Sea, ensuring safe passage through potentially intricate coastal waters.

Light & Optic

Characteristic Signature
Oc White 6s
Flash Type
Occulting
Light Color
White
Interval
6s
Raw Code
Oc W 6s
Focal Height
46m
Geographic Range
18.1NM

Construction & History

First Lit
1956

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

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

Structure: round cylindrical white fiberglass tower

Location

City
Takamatsu
Country
🇯🇵Japan
Region
Kagawa Prefecture
Sea Region
southern tip of Megi Shima island
Latitude
34.3800°
Longitude
134.0382°

References & Identifiers

Nearest Port
Takamatsu(1.2 km)
ARLHS No.
JPN-340
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Frequently Asked Questions

How do mariners identify Megi Shima Lighthouse at night?+
Megi 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 Megi Shima Lighthouse guide vessels into?+
Megi Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Takamatsu at 0.9 NM to the S. Other ports served include Naoshima (5.5 NM NNW), Ieura (6.8 NM N), Hibi (7 NM NW), Tamano (7.4 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Megi Shima Lighthouse still active and maintained?+
Yes, Megi 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 Megi Shima Lighthouse?+
Megi 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 Megi Shima Lighthouse?+
You can track vessels near Megi 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.