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Marugame Showamachi Breakwater Lighthouse

5s🇯🇵Marugame, JPOperational

Also known as: Syowamati

Established in 1972, the Marugame Showamachi Breakwater Lighthouse stands on the arm of its namesake breakwater, marking the entry to Marugame Port. This red structure rises 12 meters above sea level and emits a light visible for 11 nautical miles. It guides vessels navigating the waters of the Seto Inland Sea toward the city's harbor. The lighthouse's site is open to visitors, though the tower itself is closed to the public. It offers a reassuring presence for maritime activities in Marugame Bay.

Why it matters: This light is essential for the safe navigation of fishing boats and commercial vessels entering and leaving Marugame Port, delineating the channel along the breakwater and supporting local maritime trade.

Characteristic Signature
5s
Interval
5s
Raw Code
from front
Focal Height
12m
Geographic Range
11NM
Year Built
1972
Open to public
Site open, tower closed
Flag
Type
Name
Dist.
Tower Color
red

Structure: The Marugame Showamachi Breakwater Lighthouse, established in 1972, marks the entrance to the bustling port of Marugame in Japan. Situated on the protective arm of the breakwater, it guides vessels safely into the harbor, a vital hub for local fishing boats and commercial traffic navigating the Seto Inland Sea. Its steady presence ensures that ships can approach the docks with confidence, especially during the low visibility of night or inclement weather, offering a clear path through the bay's waters. For decades, it has been a familiar sight to mariners and residents alike, a quiet guardian overseeing the daily rhythm of maritime activity. While the tower itself remains closed to the public, visitors are welcome to explore the breakwater, enjoying refreshing sea breezes and panoramic views of the Seto Inland Sea stretching towards distant islands, with the city skyline as a backdrop. This active light continues its essential work, a constant, reassuring presence for all who rely on the waters of Marugame Bay for their livelihood and passage.

City
Marugame
Country
🇯🇵Japan
Region
Kagawa Prefecture
Sea Region
Marugame Showamachi Breakwater, Japan
Latitude
34.3049°
Longitude
133.7685°
Nearest Port
Marugame(0.2 km)
Admiralty No.
M5518
NGA No.
8344
ARLHS No.
JPN-2470
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Which ports and harbors does Marugame Showamachi Breakwater Lighthouse guide vessels into?+
Marugame Showamachi Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Aoki at 0.8 NM to the ESE. Other ports served include Ikunohama (0.8 NM ESE), Uga (0.8 NM ESE), Marugame (1.1 NM ESE), Tadotsu (2.1 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Marugame Showamachi Breakwater Lighthouse still active and maintained?+
Yes, Marugame Showamachi Breakwater 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 Marugame Showamachi Breakwater Lighthouse?+
Marugame Showamachi Breakwater 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 Marugame Showamachi Breakwater Lighthouse?+
You can track vessels near Marugame Showamachi Breakwater 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.