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

Heda Kō Breakwater Lighthouse

L Green 6s🇯🇵Numazu, JPOperational

Location & Light Range

About Heda Kō Breakwater Lighthouse

This concrete lighthouse, built in 1965, stands 8.5 meters tall with its light positioned 10 meters above sea level. It features a white quadrilateral tower attached to a single-story concrete equipment room. The light emits a single green flash every 6 seconds, visible for 10.4 nautical miles. The lighthouse marks the Heda Kō Breakwater, situated 0.5 kilometers from the nearest port of Heda. The site is accessible to the public, although the tower itself is closed.

Why it matters: This lighthouse is important for local mariners, marking the Heda Kō Breakwater and guiding fishing vessels and other craft safely into Heda Port.

Light & Optic

Characteristic Signature
L Green 6s
Flash Type
L
Light Color
Green
Interval
6s
Raw Code
L Fl G 6s
Focal Height
10m
Geographic Range
10.4NM

Construction & History

Year Built
1965

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
8.5m
Tower Shape
quadrilateral
Tower Color
white
Material
concrete

Structure: A white 8.5m concrete post, attached to a 1-story concrete equipment room.

Location

City
Numazu
Country
🇯🇵Japan
Region
Shizuoka Prefecture
Sea Region
Heda Kō Breakwater, Heda waterfront
Latitude
34.9705°
Longitude
138.7775°

References & Identifiers

Nearest Port
Heda(0.5 km)
Admiralty No.
M6268.4
NGA No.
5620
Live tracking · 50,000+ mariners

Find Heda Kō Breakwater 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 Heda Kō Breakwater Lighthouse at night?+
Heda Kō Breakwater displays the characteristic L Green 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Heda Kō Breakwater Lighthouse guide vessels into?+
Heda Kō Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Heda at 0.4 NM to the NW. Other ports served include Toi (3.5 NM S), Omosu (6.1 NM ENE), Ugusu (7.2 NM S), Numazu (7.7 NM NNE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Heda Kō Breakwater Lighthouse still active and maintained?+
Yes, Heda Kō 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 Heda Kō Breakwater Lighthouse?+
Heda Kō 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 Heda Kō Breakwater Lighthouse?+
You can track vessels near Heda Kō 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.