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Yoko Shima Lighthouse

Fl White 4s🇯🇵Hirado, JPOperational

Location & Light Range

About Yoko Shima Lighthouse

A 12m white concrete post structure with a lantern stands on a square, one-story concrete equipment shelter. Located on the southern point of Yoko Shima, it is about 3 km northeast of Ōbae Hana. The light, at a focal height of 20m, produces a white flash every 4 seconds, visible for 13.2 nautical miles. Access to the site is permitted, though the tower remains closed to the public. The lighthouse marks the area for ships approaching Hirado, a port 3.4 km distant.

Why it matters: This light provides navigation marking for the southern end of Yoko Shima island. It assists vessels in safely passing the island's coast, northeast of Ōbae Hana.

Light & Optic

Characteristic Signature
Fl White 4s
Flash Type
Flashing
Light Color
White
Interval
4s
Raw Code
Fl W 4s
Focal Height
20m
Geographic Range
13.2NM

Location

City
Hirado
Country
🇯🇵Japan
Region
Nagasaki Prefecture
Sea Region
southern tip of Yoko Shima, a small island about 3 km northeast of Ōbae Hana
Latitude
33.4217°
Longitude
129.5346°

References & Identifiers

Nearest Port
Hirado(3.4 km)
Admiralty No.
M5250.4
NGA No.
12064

Tower & Structure

Tower Height
12m
Tower Shape
post
Tower Color
white
Material
concrete

Structure: A 12m concrete post with lantern, rising from a square 1-story concrete equipment shelter, painted white.

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Yoko Shima Lighthouse at night?+
Yoko Shima displays the characteristic Fl White 4s. 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 Yoko Shima Lighthouse guide vessels into?+
Yoko Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Hirado at 3.3 NM to the SSE. Other ports served include Tabira (4.1 NM SSE), Kawachi, Nagasaki (5.6 NM S), Ikitsuki (5.6 NM WSW), Emukae (7.5 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Yoko Shima Lighthouse still active and maintained?+
Yes, Yoko 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 Yoko Shima Lighthouse?+
Yoko 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 Yoko Shima Lighthouse?+
You can track vessels near Yoko 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.