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Ikumi Lighthouse

Fl White 5s🇯🇵Shin-onsen, JPOperational

Location & Light Range

About Ikumi Lighthouse

Also known as: Ikumi (Igumi)

This concrete lighthouse is 11 meters high, situated on a rocky islet near the Ikumi shore. The white cylindrical tower, featuring a flared top and a square enclosure, reaches a focal height of 66 meters. Its light produces a white flash every 5 seconds, visible for approximately 20.9 nautical miles. A constant white spotlight is also directed towards a nearby reef. The structure is located close to Shin-onsen in Hyogo Prefecture.

Why it matters: This navigation aid warns ships of a shallow reef, with its focused spotlight highlighting the submerged hazard, improving safety for ships approaching Hamasaka port.

Light & Optic

Characteristic Signature
Fl White 5s
Flash Type
Flashing
Light Color
White
Interval
5s
Raw Code
Fl W 5s
Focal Height
66m
Geographic Range
20.9NM

Location

City
Shin-onsen
Country
🇯🇵Japan
Region
Hyogo Prefecture
Sea Region
Located atop a rocky islet off the waterfront of Ikumi, illuminating a nearby reef.
Latitude
35.6166°
Longitude
134.3855°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
11m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round concrete tower with a flared top topped by a square enclosure

References & Identifiers

Nearest Port
Hamasaka(3.2 km)
Admiralty No.
M7283.8
ARLHS No.
JPN-1499
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Frequently Asked Questions

How do mariners identify Ikumi Lighthouse at night?+
Ikumi displays the characteristic Fl White 5s. 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 Ikumi Lighthouse guide vessels into?+
Ikumi Lighthouse assists vessels approaching 5 nearby ports. The closest is Hamasaka at 3.2 NM to the ENE. Other ports served include Tajiri, Tottori (3.6 NM WSW), Tottori (10.5 NM WSW), Shibayama (13.7 NM E), Yasugi (15.8 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ikumi Lighthouse still active and maintained?+
Yes, Ikumi 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 Ikumi Lighthouse?+
Ikumi 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 Ikumi Lighthouse?+
You can track vessels near Ikumi 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.