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Okada Ko Lighthouse

Fl (2) G 8s🇯🇵Nanpo-Shoto, JPOperational

Location & Light Range

About Okada Ko Lighthouse

Okada Ko is a red, cylindrical pile beacon located in Nanpo-Shoto. The structure stands 10 meters tall, with its focal plane situated at 14 meters above sea level. It emits two green flashes every 8 seconds. This light has a geographic range of 7 nautical miles.

Light & Optic

Characteristic Signature
Fl (2) G 8s
Flash Type
Flashing
Light Color
Green
Flash Count
2 flashes
Interval
8s
Raw Code
Fl.(2)G. period 8s
Focal Height
14m
Light Range
7NM (13.0 km)
Geographic Range
7NM

Location

City
Nanpo-Shoto
Country
🇯🇵JP
Latitude
34.7928°
Longitude
139.3886°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
red

Structure: Red pile beacon

References & Identifiers

Admiralty No.
M6284
NGA No.
5480
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Frequently Asked Questions

How far offshore can Okada Ko Lighthouse be seen?+
With a focal height of 14 meters and a nominal range of 7 nautical miles (approximately 13.0 km), Okada Ko 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 Okada Ko Lighthouse at night?+
Okada Ko 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 Okada Ko Lighthouse guide vessels into?+
Okada Ko Lighthouse assists vessels approaching 5 nearby ports. The closest is Okada at 0.1 NM to the SSW. Other ports served include Nishitokyo (8 NM ESE), Inatori (17 NM W), Toshima/Tokyo (17.6 NM SSW), Itoh, Shizuoka (17.9 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Okada Ko Lighthouse still active and maintained?+
Yes, Okada Ko 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 Okada Ko Lighthouse?+
Okada Ko 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 Okada Ko Lighthouse?+
You can track vessels near Okada Ko 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.