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Todohokke Kō Lighthouse

Fl Green 4s🇯🇵Hakodate, JPOperational

Location & Light Range

About Todohokke Kō Lighthouse

Todohokke Kō lighthouse is a square concrete post, 9.5 meters tall, affixed to a 1-story concrete equipment structure. Its light source is positioned 15 meters above sea level, emitting a green flash at 4-second intervals (Fl G 4s). Situated at the extremity of the main breakwater for Todohokke, a small harbor on the north side of Esan Misaki in Hokkaido Prefecture, Japan, this navigation aid has a charted range of 11.9 nautical miles. Access to the grounds is permitted, though entry into the tower is restricted.

Why it matters: This light serves as a navigation aid, marking the harbor entrance for vessels approaching Todohokke and helping them navigate past the breakwater.

Light & Optic

Characteristic Signature
Fl Green 4s
Flash Type
Flashing
Light Color
Green
Interval
4s
Raw Code
Fl G 4s
Focal Height
15m
Geographic Range
11.9NM

Location

City
Hakodate
Country
🇯🇵Japan
Region
Hokkaido Prefecture
Sea Region
end of the main breakwater of Todohokke, a small port on the north side of Esan Misaki
Latitude
41.8240°
Longitude
141.1672°

References & Identifiers

Nearest Port
Toyoura(6.3 km)
ARLHS No.
JPN-994

Tower & Structure

Tower Height
9.5m
Tower Shape
square
Tower Color
white
Material
concrete

Structure: concrete post attached to a square 1-story concrete equipment building

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Todohokke Kō Lighthouse at night?+
Todohokke Kō displays the characteristic Fl Green 4s. 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 Todohokke Kō Lighthouse guide vessels into?+
Todohokke Kō Lighthouse assists vessels approaching 5 nearby ports. The closest is Odoh at 0.1 NM to the SSE. Other ports served include Todohokke (0.1 NM SSE), Toyoura (6.3 NM SW), Usujiri (11.9 NM NW), Date (20.3 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Todohokke Kō Lighthouse still active and maintained?+
Yes, Todohokke 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.
What shipping routes pass near Todohokke Kō Lighthouse?+
Todohokke Kō 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 Todohokke Kō Lighthouse?+
You can track vessels near Todohokke 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.