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Ishigaki Ko. Detached Breakwater. SW Hea Lighthouse

Fl (2) G 8s🇯🇵Okinawa, JPOperational

Location & Light Range

About Ishigaki Ko. Detached Breakwater. SW Hea Lighthouse

This square tower in Okinawa displays a green exterior and reaches a height of 17 meters. It is a white framework structure with a focal height of 17 meters. The light emitted is green and operates with a flashing characteristic. Its geographic range extends to 7 nautical miles. The structure itself measures 23 meters.

Light & Optic

Characteristic Signature
Fl (2) G 8s
Flash Type
Flashing
Light Color
Green
Flash Count
2 flashes
Interval
8s
Raw Code
Fl
Focal Height
17m
Light Range
7NM (13.0 km)
Geographic Range
7NM

Location

City
Okinawa
Country
🇯🇵JP
Latitude
24.3351°
Longitude
124.1364°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
17m
Tower Shape
square
Tower Color
green

Structure: White framework tower; 23

References & Identifiers

Admiralty No.
M4734.4
NGA No.
13548
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Frequently Asked Questions

How far offshore can Ishigaki Ko. Detached Breakwater. SW Hea Lighthouse be seen?+
With a focal height of 17 meters and a nominal range of 7 nautical miles (approximately 13.0 km), Ishigaki Ko. Detached Breakwater. SW Hea is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. As a shorter-range light, it primarily serves nearshore and coastal traffic.
How do mariners identify Ishigaki Ko. Detached Breakwater. SW Hea Lighthouse at night?+
Ishigaki Ko. Detached Breakwater. SW Hea displays the characteristic Fl (2) G 8s — 2 green flashes every 8 seconds. 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 Ishigaki Ko. Detached Breakwater. SW Hea Lighthouse guide vessels into?+
Ishigaki Ko. Detached Breakwater. SW Hea Lighthouse assists vessels approaching 4 nearby ports. The closest is Ishigaki at 1.1 NM to the ENE. Other ports served include Kohama (8.4 NM W), Funaura (18.3 NM WNW), Hatoma (21.7 NM WNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ishigaki Ko. Detached Breakwater. SW Hea Lighthouse still active and maintained?+
Yes, Ishigaki Ko. Detached Breakwater. SW Hea 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 Ishigaki Ko. Detached Breakwater. SW Hea Lighthouse?+
You can track vessels near Ishigaki Ko. Detached Breakwater. SW Hea 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.