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

Oto Shima Lighthouse

Fl White 3s🇯🇵Nachikatsuura, JPOperational

Location & Light Range

About Oto Shima Lighthouse

This lighthouse is situated on the southern tip of a small island at the entrance to Kii Katsuura harbor. The structure consists of an 11-meter-tall concrete post, painted white, with an attached square, single-story equipment shelter. It emits a white flash every three seconds. The lighthouse stands 16 meters above sea level. Its geographic range extends to 12.2 nautical miles.

Why it matters: The Oto Shima lighthouse is essential for safe navigation into Kii Katsuura harbor, directly supporting the region's maritime economy by guiding fishing fleets and commercial traffic.

Light & Optic

Characteristic Signature
Fl White 3s
Flash Type
Flashing
Light Color
White
Interval
3s
Raw Code
Fl W 3s
Focal Height
16m
Geographic Range
12.2NM

Location

City
Nachikatsuura
Country
🇯🇵Japan
Region
Wakayama Prefecture
Sea Region
southern tip of a small island at the entrance to Kii Katsuura harbor
Latitude
33.6134°
Longitude
135.9507°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
11m
Tower Shape
post
Tower Color
white
Material
concrete

Structure: An 11m concrete post with a square 1-story equipment shelter, painted white.

References & Identifiers

Nearest Port
Shingu(3.7 km)
Live tracking · 50,000+ mariners

Find Oto Shima 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 Oto Shima Lighthouse at night?+
Oto Shima displays the characteristic Fl White 3s. 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 Oto Shima Lighthouse guide vessels into?+
Oto Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Katsuura, Wakayama at 0.8 NM to the NNW. Other ports served include Shingu (3.8 NM NNE), Sue (11.2 NM SSW), KUSHIMOTO (11.9 NM SW), Fukuro (12.1 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Oto Shima Lighthouse still active and maintained?+
Yes, Oto Shima 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 Oto Shima Lighthouse?+
Oto Shima 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 Oto Shima Lighthouse?+
You can track vessels near Oto Shima 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.