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Saseo Lighthouse

Fl White 6s🇰🇷Tongyeong-si, KROperational

Location & Light Range

About Saseo Lighthouse

Also known as: Saseo (Sado, Saso)

A 10-meter cylindrical concrete tower painted white, Saseo Lighthouse stands 18 meters above sea level. It is located on a small island in northern Geoje Bay, approximately 2.5 km northeast of the entrance to Tongyeong harbor. The lighthouse emits a white flash every six seconds. The site is open to the public, but the tower itself is closed. It is situated about 1.8 km from the nearest port, Tongyeong.

Why it matters: This lighthouse aids vessels entering and exiting the significant port of Tongyeong, marking the northern extent of Geoje Bay.

Light & Optic

Characteristic Signature
Fl White 6s
Flash Type
Flashing
Light Color
White
Interval
6s
Raw Code
Fl W 6s
Focal Height
18m
Geographic Range
12.7NM

Location

City
Tongyeong-si
Country
🇰🇷South Korea
Region
South Gyeongsang
Sea Region
an island in northern Geoje Bay, about 2.5 km northeast of the entrance to Tongyeong harbor, South Korea
Latitude
34.8507°
Longitude
128.4616°

References & Identifiers

Nearest Port
Tongyeong(1.8 km)
Admiralty No.
M4327
NGA No.
16928

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round cylindrical concrete tower with gallery, painted white

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Saseo Lighthouse at night?+
Saseo displays the characteristic Fl 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 Saseo Lighthouse guide vessels into?+
Saseo Lighthouse assists vessels approaching 5 nearby ports. The closest is Tongyeong at 2.3 NM to the WSW. Other ports served include Anjeong (5.8 NM NNW), Geoje (6 NM E), Junghwa (6.2 NM SW), Gohyeon/Geoje (6.9 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Saseo Lighthouse still active and maintained?+
Yes, Saseo 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 Saseo Lighthouse?+
Saseo 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 Saseo Lighthouse?+
You can track vessels near Saseo 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.