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Na Shima Lighthouse

Fl W 5s🇯🇵Nagasaki Area, JPOperational

Location & Light Range

About Na Shima Lighthouse

This concrete lighthouse features a white, round plastic tower standing 30 meters tall. Its light has a focal height of 32 meters and emits a single red flash every 3 seconds. The structure comprises a 14-meter concrete post atop a single-story concrete equipment room. It is situated on a small island located about 7 kilometers east of the southeastern tip of Iki Shima. The lighthouse provides a geographic range of 5 nautical miles.

Light & Optic

Characteristic Signature
Fl W 5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5s
Raw Code
Fl.R. period 3s
Focal Height
32m
Geographic Range
5NM

Location

City
Nagasaki Area
Country
🇯🇵JP
Latitude
33.7349°
Longitude
129.8574°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
30m
Tower Shape
round
Tower Color
white
Material
concrete

Structure: White round plastic tower; 30

References & Identifiers

Admiralty No.
M5261.9
NGA No.
12712
ARLHS No.
JPN-811
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Frequently Asked Questions

How do mariners identify Na Shima Lighthouse at night?+
Na Shima displays the characteristic Fl W 5s — 1 white flash every 5 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.
Which ports and harbors does Na Shima Lighthouse guide vessels into?+
Na Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Ashibe at 6.7 NM to the NW. Other ports served include Katsumoto (11.1 NM NW), Yobuko (11.7 NM S), Tobo (15.6 NM SSE), Karatsu (16.1 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Na Shima Lighthouse still active and maintained?+
Yes, Na 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 Na Shima Lighthouse?+
Na 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 Na Shima Lighthouse?+
You can track vessels near Na 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.