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Daedan Lighthouse

Fl White 4s🇰🇷Yeosu-si, KROperational

Location & Light Range

About Daedan Lighthouse

Also known as: Daedan (Taedan, Big End Lighthouse)

The Daedan Lighthouse, built in 2001, is a concrete cylindrical tower standing 13 meters tall. It features a black exterior with a single yellow horizontal band and an octagonal gallery at its top. The light emits white flashes every 4 seconds from a focal height of 33 meters, offering a geographic range of 15.9 nautical miles. Located on the northeast coast of Dolsando, approximately 4 km southeast of the Dolsan lighthouse, its site is open to the public while the tower itself remains closed. The nearest port is Yeosu, 5.6 km away.

Why it matters: This lighthouse guides local shipping and fishing vessels along the Dolsando coastline, helping mariners identify the island's northeastern promontory and avoid grounding in a potentially challenging area.

Light & Optic

Characteristic Signature
Fl White 4s
Flash Type
Flashing
Light Color
White
Interval
4s
Raw Code
Fl W 4s
Focal Height
33m
Geographic Range
15.9NM

Construction & History

Year Built
2001

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
13m
Tower Shape
cylindrical
Tower Color
black with one yellow horizontal band
Material
concrete

Structure: octagonal cylindrical white concrete tower with gallery

Location

City
Yeosu-si
Country
🇰🇷South Korea
Region
South Jeolla
Sea Region
northeast coast of Dolsando, about 4 km southeast of the Dolsan lighthouse
Latitude
34.6608°
Longitude
127.8061°

References & Identifiers

Nearest Port
Yeosu(5.6 km)
Admiralty No.
M4308.98
NGA No.
17101
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Frequently Asked Questions

How do mariners identify Daedan Lighthouse at night?+
Daedan displays the characteristic Fl White 4s. 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 Daedan Lighthouse guide vessels into?+
Daedan Lighthouse assists vessels approaching 5 nearby ports. The closest is Yeosu at 8.2 NM to the NW. Other ports served include Samil (12.4 NM N), Gwangyang (14.1 NM NNW), Samcheonpo/Sacheon (20.5 NM NE), Junghwa (28.6 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Daedan Lighthouse still active and maintained?+
Yes, Daedan 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 Daedan Lighthouse?+
Daedan 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 Daedan Lighthouse?+
You can track vessels near Daedan 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.