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To Shima Lighthouse

Fl White 6s🇯🇵Tokyo, JPOperational

Location & Light Range

About To Shima Lighthouse

Also known as: To Shima (Toshima)

Constructed in 1982, the To Shima Lighthouse stands on a steep slope at the northern end of the island, overlooking the town. This cylindrical concrete tower, painted white, reaches a height of 13 meters. It emits a white flash every 6 seconds from a focal height of 66 meters, with a geographic range of 20.9 nautical miles. The lighthouse is attached to a single-story equipment building, and the site is open to visitors, though the tower itself remains closed. Its location provides panoramic views of the sea and the settlement below.

Why it matters: This lighthouse serves as a key navigational reference point, guiding vessels along the coast and assisting local fishing boats.

Light & Optic

Characteristic Signature
Fl White 6s
Flash Type
Flashing
Light Color
White
Interval
6s
Raw Code
Fl W 6s
Focal Height
66m
Geographic Range
20.9NM

Construction & History

Year Built
1982

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
13m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round cylindrical concrete tower with gallery, attached to a 1-story equipment building

Location

City
Tokyo
Country
🇯🇵Japan
Region
Oshima Subprefecture
Sea Region
on a steep slope above the town at the northern end of the island
Latitude
34.5310°
Longitude
139.2766°

References & Identifiers

Nearest Port
Toshima Tokyo(0.3 km)
Admiralty No.
M6273.5
ARLHS No.
JPN-651
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Frequently Asked Questions

How do mariners identify To Shima Lighthouse at night?+
To Shima displays the characteristic Fl White 6s. 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does To Shima Lighthouse guide vessels into?+
To Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Toshima/Tokyo at 1 NM to the SSW. Other ports served include Okada (16.5 NM NNE), Nishitokyo (17.6 NM NE), Shimoda, Shizuoka (17.9 NM WNW), Inatori (18.5 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is To Shima Lighthouse still active and maintained?+
Yes, To Shima 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 To Shima Lighthouse?+
To Shima 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 To Shima Lighthouse?+
You can track vessels near To Shima 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.