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Mimai Saki Lighthouse

Iso White 6s🇯🇵Ikata, JPOperational

Location & Light Range

About Mimai Saki Lighthouse

This lighthouse was built in 1976 as a two-stage round concrete tower with a double gallery. It stands 10 meters tall with the light positioned 73 meters above sea level. The light emits an isophase white flash every 6 seconds, visible for 21.8 nautical miles. Situated on a sharp promontory about two-thirds of the way along the north side of the Sadamisaki peninsula, it marks this significant coastal feature. The site is open to visitors, though the tower itself is closed.

Why it matters: This lighthouse is important for guiding maritime traffic around the Sadamisaki peninsula and warning vessels of the sharp promontory it occupies.

Light & Optic

Characteristic Signature
Iso White 6s
Flash Type
Isophase
Light Color
White
Interval
6s
Raw Code
Iso W 6s
Focal Height
73m
Geographic Range
21.8NM

Construction & History

Year Built
1976

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: two-stage round concrete tower with double gallery

Location

City
Ikata
Country
🇯🇵Japan
Region
Ehime Prefecture
Sea Region
Located on a sharp promontory on the north side of the Sadamisaki peninsula about 2/3 of the way to the cape.
Latitude
33.4192°
Longitude
132.1228°

References & Identifiers

Nearest Port
Misaki(1.8 km)
ARLHS No.
JPN-354
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Frequently Asked Questions

How do mariners identify Mimai Saki Lighthouse at night?+
Mimai Saki displays the characteristic Iso 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 Mimai Saki Lighthouse guide vessels into?+
Mimai Saki Lighthouse assists vessels approaching 5 nearby ports. The closest is Misaki, Ehime at 2.1 NM to the SSW. Other ports served include MITSUKE (6.7 NM ENE), Ikata (12.1 NM ENE), Kawanoishi (13.8 NM ENE), Mikame (14.8 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Mimai Saki Lighthouse still active and maintained?+
Yes, Mimai Saki 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 Mimai Saki Lighthouse?+
Mimai Saki 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 Mimai Saki Lighthouse?+
You can track vessels near Mimai Saki 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.