Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Tonohama Lighthouse

F White 6s🇯🇵Yasuda, JPOperational

Location & Light Range

About Tonohama Lighthouse

Also known as: Tonohama (Karahama)

Tonohama Lighthouse was established in 1969 as a cylindrical concrete tower painted white, standing 17 meters tall. Its focal height reaches 24 meters above sea level. Positioned on a promontory on the east side of Yasuda, the lighthouse warns mariners of shoals in the area. The main light was discontinued in March 2013, but a sector light continues to operate. The site is open to the public, though the tower itself is closed.

Why it matters: This lighthouse warns vessels of shoals near Yasuda and provides guidance for local fishing fleets and coastal shipping.

Light & Optic

Characteristic Signature
F White 6s
Flash Type
Fixed
Light Color
White
Interval
6s
Raw Code
F W
Focal Height
24m
Geographic Range
14.1NM

Construction & History

Year Built
1969

Significant events: Main light discontinued in March 2013

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
17m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round concrete tower with a boxlike lantern for the sector light

Location

City
Yasuda
Country
🇯🇵Japan
Region
Kochi Prefecture
Sea Region
Located on a promontory on the east side of Yasuda, approximately 8 km southeast of Aki, warning mariners of nearby shoals.
Latitude
33.4428°
Longitude
133.9634°

References & Identifiers

Nearest Port
Nahari(2.6 km)
Admiralty No.
M5592.5
NGA No.
10120
ARLHS No.
JPN-2518
Live tracking · 50,000+ mariners

Find Tonohama Lighthouse on the live nautical map

Plan voyages near Japan, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

Frequently Asked Questions

How do mariners identify Tonohama Lighthouse at night?+
Tonohama displays the characteristic F 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 Tonohama Lighthouse guide vessels into?+
Tonohama Lighthouse assists vessels approaching 5 nearby ports. The closest is Nahari at 3 NM to the ESE. Other ports served include Murotsu, Kochi (13.2 NM SE), Kannoura (18 NM ENE), Kochi (20.7 NM WNW), Asakawa (23.3 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Tonohama Lighthouse still active and maintained?+
Yes, Tonohama 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 Tonohama Lighthouse?+
Tonohama 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 Tonohama Lighthouse?+
You can track vessels near Tonohama 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.