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

Naha Kō Entrance Starboard Lighthouse

Fl Red 3s🇯🇵Naha, JPOperational

Location & Light Range

About Naha Kō Entrance Starboard Lighthouse

This lighthouse is located on the south side of the entrance to Naha's inner harbor in Okinawa Prefecture, Japan. Operational since 1972, the structure is a red, square, one-story pierhead building measuring 4.5 meters in height. The light itself is positioned at a focal height of 6.5 meters. It emits a single red flash every three seconds, visible for up to 9.1 nautical miles. The site is open to the public, though the tower itself is closed. This navigational aid is situated approximately 0.8 kilometers from the nearest port of Naha.

Why it matters: The red flash marks the starboard side of the channel, guiding vessels safely into Naha's busy inner harbor. The distinctive building also serves as a visual landmark for approaching mariners.

Light & Optic

Characteristic Signature
Fl Red 3s
Flash Type
Flashing
Light Color
Red
Interval
3s
Raw Code
Fl R 3s
Focal Height
6.5m
Geographic Range
9.1NM

Construction & History

Year Built
1972

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
4.5m
Tower Shape
square
Tower Color
red

Structure: light centered on a square 1-story pierhead building

Location

City
Naha
Country
🇯🇵Japan
Region
Okinawa Prefecture
Sea Region
Entrance to Naha's inner harbor, south side.
Latitude
26.2136°
Longitude
127.6649°

References & Identifiers

Nearest Port
Naha, Okinawa(0.8 km)
Admiralty No.
M4743
NGA No.
13392
Live tracking · 50,000+ mariners

Find Naha Kō Entrance Starboard 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 Naha Kō Entrance Starboard Lighthouse at night?+
Naha Kō Entrance Starboard displays the characteristic Fl Red 3s. 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Naha Kō Entrance Starboard Lighthouse guide vessels into?+
Naha Kō Entrance Starboard Lighthouse assists vessels approaching 5 nearby ports. The closest is Ginowan at 1 NM to the E. Other ports served include Naha, Okinawa (1 NM NNE), Nishihara (7.3 NM E), Tokujin (7.3 NM E), KinNakagusuku (11.6 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Naha Kō Entrance Starboard Lighthouse still active and maintained?+
Yes, Naha Kō Entrance Starboard 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.
How can I track vessels near Naha Kō Entrance Starboard Lighthouse?+
You can track vessels near Naha Kō Entrance Starboard 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.