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Takami Kō Lighthouse

Fl (3) Green 12s🇯🇵Tadotsu, JPOperational

Location & Light Range

About Takami Kō Lighthouse

Takami Kō lighthouse was built in 1977 and first lit the same year. It is a 9.5-meter concrete post that rises from a square, single-story equipment shelter, both painted white. This structure stands at the extremity of the main breakwater for Takami Shima harbor. The lighthouse emits a single green flash every 12 seconds. It has a geographic range of 11 nautical miles and a focal height of 12 meters above sea level. The site is open to the public, but the tower itself is closed.

Why it matters: This lighthouse is essential for the safe passage of vessels entering and exiting the harbor of Takami Shima, clearly delineating the safe channel.

Light & Optic

Characteristic Signature
Fl (3) Green 12s
Flash Type
Flashing
Light Color
Green
Flash Count
3 flashes
Interval
12s
Raw Code
Fl G 12s
Focal Height
12m
Geographic Range
11NM

Construction & History

Year Built
1977

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
9.5m
Tower Shape
lantern
Tower Color
white
Material
concrete

Structure: A 9.5m concrete post rising from a square 1-story concrete equipment shelter, painted white.

Location

City
Tadotsu
Country
🇯🇵Japan
Region
Kagawa Prefecture
Sea Region
Located at the end of the south (main) breakwater of the harbor of Takami Shima, an island about 12 km (7.5 mi) northwest of the Tadotsu waterfront.
Latitude
34.3082°
Longitude
133.6822°

References & Identifiers

Nearest Port
Awashima(3.4 km)
Admiralty No.
M5503.5
NGA No.
8244
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Frequently Asked Questions

How do mariners identify Takami Kō Lighthouse at night?+
Takami Kō displays the characteristic Fl (3) Green 12s — 3 green flashes every 12 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 Takami Kō Lighthouse guide vessels into?+
Takami Kō Lighthouse assists vessels approaching 5 nearby ports. The closest is Sanagi at 3.1 NM to the WNW. Other ports served include Awashima (3.4 NM SW), Tadotsu (3.5 NM ESE), Takuma (4.8 NM S), Aoki (5 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Takami Kō Lighthouse still active and maintained?+
Yes, Takami Kō 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 Takami Kō Lighthouse?+
Takami Kō 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 Takami Kō Lighthouse?+
You can track vessels near Takami Kō 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.