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Shimotsu Kamanoshimo Breakwater Lighthouse

Oc Green 8s🇯🇵Kainan, JPOperational

Location & Light Range

About Shimotsu Kamanoshimo Breakwater Lighthouse

This concrete lighthouse stands 10 meters tall on a short breakwater, marking the north side of the Shimotsu harbor entrance. Its round, cylindrical tower is white and attached to a one-story concrete equipment room. The light emits a green occulting flash every 8 seconds. The geographic range of its light is 11.3 nautical miles. The structure rises 13 meters above sea level.

Why it matters: The lighthouse is essential for guiding vessels safely into and out of Shimotsu harbor, delineating the channel's northern edge.

Light & Optic

Characteristic Signature
Oc Green 8s
Flash Type
Occulting
Light Color
Green
Interval
8s
Raw Code
Oc G 8s
Focal Height
13m
Geographic Range
11.3NM

Location

City
Kainan
Country
🇯🇵Japan
Region
Wakayama Prefecture
Sea Region
Located on a short breakwater on the north side of the entrance to Shimotsu.
Latitude
34.1181°
Longitude
135.1330°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

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

Structure: round cylindrical concrete tower attached to a 1-story concete equipment room

References & Identifiers

Nearest Port
Shimotsu(0.4 km)
Admiralty No.
M5967
NGA No.
6984
ARLHS No.
JPN-1971
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Frequently Asked Questions

How do mariners identify Shimotsu Kamanoshimo Breakwater Lighthouse at night?+
Shimotsu Kamanoshimo Breakwater displays the characteristic Oc Green 8s. 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Shimotsu Kamanoshimo Breakwater Lighthouse guide vessels into?+
Shimotsu Kamanoshimo Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Shimotsu at 0.1 NM to the SSE. Other ports served include Kainan (4.9 NM N), Wakayama (4.9 NM N), Yuasahiro (5.5 NM SSE), Yura, Wakayama (9.6 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Shimotsu Kamanoshimo Breakwater Lighthouse still active and maintained?+
Yes, Shimotsu Kamanoshimo Breakwater 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 Shimotsu Kamanoshimo Breakwater Lighthouse?+
Shimotsu Kamanoshimo Breakwater 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 Shimotsu Kamanoshimo Breakwater Lighthouse?+
You can track vessels near Shimotsu Kamanoshimo Breakwater 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.