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Hisanohama Kō South Breakwater Lighthouse

F Green 5s🇯🇵Iwaki, JPOperational

Location & Light Range

About Hisanohama Kō South Breakwater Lighthouse

This lighthouse, built in 1974, stands on the south breakwater of Hisanohama port in Iwaki city, Fukushima Prefecture. The structure is an 11-meter-high white concrete cylindrical post with a square, single-story equipment shelter at its base. It emits a green light with a single flash every five seconds, visible for nearly 12 nautical miles. The site is open to visitors who can access the area around the lighthouse, though the tower itself is closed. It is located 0.3 kilometers from the nearest port of Hisanohama.

Why it matters: This lighthouse is essential for vessels navigating into and out of Hisanohama harbor, clearly marking the southern edge of the breakwater. Its unique concrete post design serves as a visual reference for mariners.

Light & Optic

Characteristic Signature
F Green 5s
Flash Type
Fixed
Light Color
Green
Interval
5s
Raw Code
F G Fl G 5s
Focal Height
15m
Geographic Range
11.9NM

Construction & History

Year Built
1974

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
11m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: An 11m white concrete cylindrical post with a square 1-story concrete equipment shelter at its base.

Location

City
Iwaki
Country
🇯🇵Japan
Region
Fukushima Prefecture
Sea Region
south breakwater of Hisanohama
Latitude
37.1464°
Longitude
141.0020°

References & Identifiers

Nearest Port
Hisanohama(0.3 km)
ARLHS No.
JPN-1350
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Frequently Asked Questions

How do mariners identify Hisanohama Kō South Breakwater Lighthouse at night?+
Hisanohama Kō South Breakwater displays the characteristic F Green 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Hisanohama Kō South Breakwater Lighthouse guide vessels into?+
Hisanohama Kō South Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Hisanohama at 0.1 NM to the NE. Other ports served include Yotsukura (2.4 NM S), Ena (10.9 NM S), Nakanosaku (11.5 NM SSW), Ishiwaki (13.7 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Hisanohama Kō South Breakwater Lighthouse still active and maintained?+
Yes, Hisanohama Kō South 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 Hisanohama Kō South Breakwater Lighthouse?+
Hisanohama Kō South 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 Hisanohama Kō South Breakwater Lighthouse?+
You can track vessels near Hisanohama Kō South 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.