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Nezumi Shima Lighthouse

Fl White 4s🇯🇵Tsushima, JPOperational

Location & Light Range

About Nezumi Shima Lighthouse

Also known as: Mezumi

The Nezumi Shima Lighthouse, also referred to as Mezumi Shima, was built in 1966. This cylindrical concrete tower stands 13 meters tall and is attached to a small equipment room. Its focal height is 14 meters above sea level. The lighthouse emits a white flash every 4 seconds, visible for 11.6 nautical miles. The site is open to visitors, though the tower itself is closed to the public. It is located near the port of Takeshiki.

Why it matters: This light warns vessels of the presence of Nezumi (Mezumi) Shima island and aids navigation in the surrounding waters.

Light & Optic

Characteristic Signature
Fl White 4s
Flash Type
Flashing
Light Color
White
Interval
4s
Raw Code
Fl W 4s
Focal Height
14m
Geographic Range
11.6NM

Construction & History

Year Built
1966

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
13m
Tower Shape
cylindrical
Material
concrete

Structure: round concrete tower, attached to a small concrete equipment room

Location

City
Tsushima
Country
🇯🇵Japan
Region
Nagasaki Prefecture
Sea Region
Nezumi (Mezumi) Shima, Japan
Latitude
34.3177°
Longitude
129.3017°

References & Identifiers

Nearest Port
Takeshiki(1.0 km)
ARLHS No.
JPN-2224
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Frequently Asked Questions

How do mariners identify Nezumi Shima Lighthouse at night?+
Nezumi 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 Nezumi Shima Lighthouse guide vessels into?+
Nezumi Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Takeshiki at 1.1 NM to the S. Other ports served include Hirugaura (1.3 NM WNW), Mizusaki (2.8 NM NW), Kusubo (3.1 NM ESE), Kechi (3.5 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Nezumi Shima Lighthouse still active and maintained?+
Yes, Nezumi 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 Nezumi Shima Lighthouse?+
Nezumi 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 Nezumi Shima Lighthouse?+
You can track vessels near Nezumi 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.