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Odaito Kō Lighthouse

F Green 3s🇯🇵Betsukai, JPOperational

Location & Light Range

About Odaito Kō Lighthouse

A cylindrical concrete tower, 11 meters tall, was built and first lit in 1979 to mark Odaito Kō. The structure, painted white, features an hourglass shape below its lantern and gallery. It emits a green light with a single flash every three seconds, visible for 11.3 nautical miles. This lighthouse is situated at the end of the central quay in Odiato, facing Ryujin Bay and sheltered by Notsuke Saki. The site is open to visitors, though the tower itself is closed.

Why it matters: This lighthouse guides vessels into Odaito harbor and through the sheltered waters of Ryujin Bay, which are protected by the geographic feature of Notsuke Saki.

Light & Optic

Characteristic Signature
F Green 3s
Flash Type
Fixed
Light Color
Green
Interval
3s
Raw Code
F.Fl G 3s
Focal Height
13m
Geographic Range
11.3NM

Construction & History

Year Built
1979

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: round hourglass-shaped concrete tower with lantern and gallery, painted white

Location

City
Betsukai
Country
🇯🇵Japan
Region
Hokkaido Prefecture
Sea Region
Odaito harbor, facing Ryujin Bay, sheltered by the long hook of Notsuke Saki. It is located at the end of the central quay of Odiato, approximately 11 km south of Sibetu.
Latitude
43.5683°
Longitude
145.2256°

References & Identifiers

Nearest Port
Nemuro(20.6 km)
Admiralty No.
M6856.5
NGA No.
0392
ARLHS No.
JPN-937
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Frequently Asked Questions

How do mariners identify Odaito Kō Lighthouse at night?+
Odaito Kō displays the characteristic F Green 3s. 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 Odaito Kō Lighthouse guide vessels into?+
Odaito Kō Lighthouse assists vessels approaching 5 nearby ports. The closest is Shibetsu at 6.8 NM to the NW. Other ports served include Nemuro (21 NM SE), Hanasaki (23 NM SE), Nasa (23.2 NM SE), Kiritappu (29.4 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Odaito Kō Lighthouse still active and maintained?+
Yes, Odaito Kō 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 Odaito Kō Lighthouse?+
You can track vessels near Odaito Kō 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.