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Iyo Takega Shima Lighthouse

Fl (4) White 16s🇯🇵Uwajima, JPOperational

Location & Light Range

About Iyo Takega Shima Lighthouse

The Iyo Takega Shima lighthouse is a cylindrical concrete tower standing 8 meters tall, located at the western tip of Takega Shima island. This island lies approximately 4 kilometers north of Suge Saki. The lighthouse emits a white light with a characteristic of one white flash every 16 seconds. Its focal height reaches 33 meters above sea level, providing a geographic range of 15.9 nautical miles. The structure's white concrete construction serves as a visual marker in the region.

Why it matters: This lighthouse is essential for guiding vessels around the western extremity of Takega Shima, helping to prevent groundings on the island's submerged hazards.

Light & Optic

Characteristic Signature
Fl (4) White 16s
Flash Type
Flashing
Light Color
White
Flash Count
4 flashes
Interval
16s
Raw Code
Fl W 16s
Focal Height
33m
Geographic Range
15.9NM

Location

City
Uwajima
Country
🇯🇵Japan
Region
Ehime Prefecture
Sea Region
Located at the western tip of Takega Shima, an island about 4 km north of Suge Saki.
Latitude
33.1060°
Longitude
132.4086°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
8m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round white concrete tower

References & Identifiers

Nearest Port
Yutai(4.4 km)
Admiralty No.
M5614.1
ARLHS No.
JPN-194
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Frequently Asked Questions

How do mariners identify Iyo Takega Shima Lighthouse at night?+
Iyo Takega Shima displays the characteristic Fl (4) White 16s — 4 white flashes every 16 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Iyo Takega Shima Lighthouse guide vessels into?+
Iyo Takega Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Iwamatsu at 5 NM to the ENE. Other ports served include Hyakunoura (9.1 NM NE), Uwajima (10 NM NE), Aji (10.4 NM NE), Nagimi (10.4 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Iyo Takega Shima Lighthouse still active and maintained?+
Yes, Iyo Takega 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 Iyo Takega Shima Lighthouse?+
Iyo Takega 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 Iyo Takega Shima Lighthouse?+
You can track vessels near Iyo Takega 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.