Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Naku Saki Lighthouse

Fl White 5s🇯🇵Okinoshima, JPOperational

Location & Light Range

About Naku Saki Lighthouse

Also known as: Nagu

The Naku Saki Lighthouse, built in 1963, is a 12-meter cylindrical concrete tower. It stands on a cape in Okinoshima, within Japan's Shimane Prefecture. The lighthouse emits a white flash every five seconds from a focal height of 46 meters, offering a geographic range of 18.1 nautical miles. While the tower is closed to the public, the site is open for visitors. The lighthouse is located near the Okinokojima port, 7.4 kilometers away. Its structure includes a lantern and gallery.

Why it matters: This lighthouse is essential for guiding vessels around the Naku Saki cape, a significant point for coastal navigation in Japan. Its light aids local shipping and fishing fleets in this active maritime area.

Light & Optic

Characteristic Signature
Fl White 5s
Flash Type
Flashing
Light Color
White
Interval
5s
Raw Code
Fl W 5s
Focal Height
46m
Geographic Range
18.1NM

Construction & History

Year Built
1963

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
12m
Tower Shape
cylindrical
Material
concrete

Structure: round cylindrical concrete tower with lantern and gallery

Location

City
Okinoshima
Country
🇯🇵Japan
Region
Shimane Prefecture
Sea Region
Naku Saki (Nagu Saki) in Japan, marking a cape for coastal navigation.
Latitude
36.2125°
Longitude
133.1842°

References & Identifiers

Nearest Port
Okinokojima(7.4 km)
ARLHS No.
JPN-401
Live tracking · 50,000+ mariners

Find Naku Saki Lighthouse on the live nautical map

Plan voyages near Japan, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

Frequently Asked Questions

How do mariners identify Naku Saki Lighthouse at night?+
Naku Saki displays the characteristic Fl White 5s. 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 Naku Saki Lighthouse guide vessels into?+
Naku Saki Lighthouse assists vessels approaching 5 nearby ports. The closest is Oki at 7.4 NM to the E. Other ports served include Ama, Hyogo (8 NM SW), Nakanoshima (8.3 NM SW), Chichii (8.8 NM SSW), Beppu, Shimane (9.3 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Naku Saki Lighthouse still active and maintained?+
Yes, Naku 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 Naku Saki Lighthouse?+
Naku 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 Naku Saki Lighthouse?+
You can track vessels near Naku 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.