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Dotumariam Lighthouse

Fl R 4s🇰🇷Masan and Geoje Area, KROperational

Location & Light Range

About Dotumariam Lighthouse

This white framework tower, accented with red banding, stands 14 meters above sea level. Constructed of concrete, it features a round design. The lighthouse emits two white flashes every 5 seconds. It is located in the Masan and Geoje Area.

Why it matters: The lighthouse has a geographic range of 11 nautical miles.

Light & Optic

Characteristic Signature
Fl R 4s
Flash Type
Flashing
Light Color
Red
Flash Count
1 flash
Interval
4s
Raw Code
Fl.(2)W. period 5s
Focal Height
14m
Geographic Range
11NM

Location

City
Masan and Geoje Area
Country
🇰🇷KR
Latitude
35.0971°
Longitude
128.6789°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Shape
round
Tower Color
white and red
Material
concrete

Structure: White framework tower, red banded

References & Identifiers

Admiralty No.
M4346
NGA No.
16804
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Frequently Asked Questions

How do mariners identify Dotumariam Lighthouse at night?+
Dotumariam displays the characteristic Fl R 4s — 1 red flash every 4 seconds. 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Dotumariam Lighthouse guide vessels into?+
Dotumariam Lighthouse assists vessels approaching 5 nearby ports. The closest is Jinhae at 1.8 NM to the N. Other ports served include Busan New Port (6.2 NM ESE), Masan (6.6 NM NW), Gohyeon/Geoje (11.9 NM SSW), Okpo/Geoje (12.6 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Dotumariam Lighthouse still active and maintained?+
Yes, Dotumariam 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 Dotumariam Lighthouse?+
Dotumariam 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 Dotumariam Lighthouse?+
You can track vessels near Dotumariam 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.