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Kamiyama Shima Lighthouse

Fl White 4s🇯🇵Tokashiki, JPOperational

Location & Light Range

About Kamiyama Shima Lighthouse

Kamiyama Shima lighthouse is a square pyramidal concrete tower constructed in 1972. Standing 10 meters tall with a focal height of 21 meters, it is attached to a 1-story concrete equipment building. The white tower emits a single white flash every 4 seconds, visible for 13.4 nautical miles. This lighthouse is located on a small, uninhabited island approximately 9 kilometers west-northwest of Naha harbor's entrance. Its operational status has been continuous since its first lighting in 1972. The nearest port, Naha, is 4.7 kilometers away.

Why it matters: This lighthouse guides vessels approaching Naha harbor, a significant port in the Okinawa Prefecture.

Light & Optic

Characteristic Signature
Fl White 4s
Flash Type
Flashing
Light Color
White
Interval
4s
Raw Code
Fl W 4s
Focal Height
21m
Geographic Range
13.4NM

Construction & History

Year Built
1972

References & Identifiers

Nearest Port
Naha, Okinawa(4.7 km)
Admiralty No.
M4740
ARLHS No.
JPN-218

Tower & Structure

Tower Height
10m
Tower Shape
square
Tower Color
white
Material
concrete

Structure: square pyramidal concrete tower attached to a small 1-story concrete equipment building

Location

City
Tokashiki
Country
🇯🇵Japan
Region
Okinawa Prefecture
Sea Region
small, uninhabited island about 9 km west northwest of the entrance to Naha harbor
Latitude
26.2642°
Longitude
127.5884°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Kamiyama Shima Lighthouse at night?+
Kamiyama 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 Kamiyama Shima Lighthouse guide vessels into?+
Kamiyama Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Naha, Okinawa at 4.8 NM to the ESE. Other ports served include Ginowan (5.9 NM ESE), Nishihara (11.7 NM ESE), Tokujin (11.7 NM ESE), Tokashiki (12.3 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kamiyama Shima Lighthouse still active and maintained?+
Yes, Kamiyama 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.
How can I track vessels near Kamiyama Shima Lighthouse?+
You can track vessels near Kamiyama 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.