Maru Iwa Lighthouse
Location & Light Range
About Maru Iwa Lighthouse
This red, cylindrical concrete lighthouse stands 11 meters tall on a reef at the entrance to Hirao harbor, near Tabuse in Japan's Yamaguchi Prefecture. The structure includes a single-story concrete equipment shelter. Its focal height is also 11 meters, and it emits a red light with a single flash every 8 seconds. The lighthouse is situated on a reef, approximately 1.1 kilometers from the nearest port, Hirao. The site is open to the public, though the tower itself remains closed.
Why it matters: The Maru Iwa lighthouse is essential for safe navigation into and out of Hirao harbor, specifically warning vessels about the submerged reef directly in the entrance, thereby helping to prevent groundings and collisions.
Light & Optic
- Flash Type
- Flashing
- Light Color
- Red
- Interval
- 8s
- Raw Code
- Fl R 8s
- Focal Height
- 11m
- Geographic Range
- 10.7NM
Location
- City
- Tabuse
- Country
- 🇯🇵Japan
- Region
- Yamaguchi Prefecture
- Sea Region
- entrance to Hirao harbor, on a reef
- Latitude
- 33.9011°
- Longitude
- 132.0347°
References & Identifiers
- Nearest Port
- Hirao(1.1 km)
- Admiralty No.
- M5406.5
- NGA No.
- 9472
Tower & Structure
- Tower Height
- 11m
- Tower Shape
- cylindrical
- Tower Color
- red
- Material
- concrete
Structure: A 11m cylindrical concrete post with a 1-story concrete equipment shelter, painted red.
Visiting
- Open to public
- Site open, tower closed
Nearby Vessels
اعثر على منارة Maru Iwa على الخريطة البحرية المباشرة
خطّط رحلاتك قرب Japan، وشاهد السفن المجاورة في الوقت الفعلي، واستكشف أكثر من 14,900 معلَم ملاحي في التطبيق.