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Kuroshima Saki Lighthouse

Fl (3) White 13s🇯🇵Okinoshima, JPOperational

Location & Light Range

About Kuroshima Saki Lighthouse

The Kuroshima Saki lighthouse, a 10-meter cylindrical concrete tower, was first lit in 1961. Its white structure stands at the easternmost point of Dōgo in Japan's Shimane Prefecture, marking the island's eastern flank and illuminating the nearby Kabi Shima skerry. The lighthouse emits a white light with a characteristic of one white flash every 13 seconds from a focal height of 30 meters, with a geographic range of 15.3 nautical miles. In 1987, a spotlight was added to specifically highlight Kabi Shima, enhancing its navigational function. The nearest port, Okinokojima, is 4.6 kilometers away.

Why it matters: This lighthouse is essential for marking Dōgo's easternmost point, providing a clear navigational reference for vessels rounding this significant headland. Its dedicated spotlight illuminating the hazardous Kabi Shima skerry directly enhances safety for local shipping and fishing vessels.

Light & Optic

Characteristic Signature
Fl (3) White 13s
Flash Type
Flashing
Light Color
White
Flash Count
3 flashes
Interval
13s
Raw Code
Fl W 13s
Focal Height
30m
Geographic Range
15.3NM

Construction & History

Year Built
1961

Significant events: Spotlight added in 1987

References & Identifiers

Nearest Port
Okinokojima(4.6 km)

Tower & Structure

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

Structure: round cylindrical concrete tower with a concrete lantern room at the top

Location

City
Okinoshima
Country
🇯🇵Japan
Region
Shimane Prefecture
Sea Region
Easternmost point of Dōgo, illuminating the nearby Kabi Shima skerry
Latitude
36.2697°
Longitude
133.3855°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Kuroshima Saki Lighthouse at night?+
Kuroshima Saki displays the characteristic Fl (3) White 13s — 3 white flashes every 13 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 Kuroshima Saki Lighthouse guide vessels into?+
Kuroshima Saki Lighthouse assists vessels approaching 5 nearby ports. The closest is Oki at 4.3 NM to the SSW. Other ports served include Chichii (17.4 NM SW), Ama, Hyogo (17.5 NM SW), Nakanoshima (17.9 NM WSW), Minami (18.3 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kuroshima Saki Lighthouse still active and maintained?+
Yes, Kuroshima Saki 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 Kuroshima Saki Lighthouse?+
Kuroshima Saki 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 Kuroshima Saki Lighthouse?+
You can track vessels near Kuroshima Saki 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.