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Incheon Lock Gate North Lighthouse

Fl (3) Green 7s🇰🇷Incheon, KROperational

Location & Light Range

About Incheon Lock Gate North Lighthouse

Also known as: Incheon Lock Gate North (Wolmido)

This red, cylindrical concrete tower stands 12 meters tall, with its focal height at 16 meters. It guides vessels with a green light that flashes once every 7 seconds, visible for 12.2 nautical miles. The structure features a round tower with a lantern and gallery, centered atop a square concrete equipment building. Located on a short breakwater at the end of Wolmido Park, it marks the north side of the lock entrance to Incheon's inner harbor. The site is open to the public, but the tower itself is closed.

Why it matters: This lighthouse marks the north side of the lock entrance to Incheon's inner harbor, providing a clear navigational reference for vessels entering and exiting this busy port.

Light & Optic

Characteristic Signature
Fl (3) Green 7s
Flash Type
Flashing
Light Color
Green
Flash Count
3 flashes
Interval
7s
Raw Code
Fl G 7s
Focal Height
16m
Geographic Range
12.2NM

Location

City
Incheon
Country
🇰🇷South Korea
Sea Region
north of the lock entrance to Incheon's inner harbor, at the end of a short breakwater at Wolmido Park
Latitude
37.4689°
Longitude
126.5948°

References & Identifiers

Nearest Port
Incheon(4.5 km)
Admiralty No.
M4173.8
NGA No.
17969

Tower & Structure

Tower Height
12m
Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: round concrete tower with lantern and gallery, centered on a square concrete equipment building

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 Incheon Lock Gate North Lighthouse at night?+
Incheon Lock Gate North displays the characteristic Fl (3) Green 7s — 3 green flashes every 7 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Incheon Lock Gate North Lighthouse guide vessels into?+
Incheon Lock Gate North Lighthouse assists vessels approaching 5 nearby ports. The closest is Gyeongin at 3.9 NM to the N. Other ports served include Incheon (5 NM SW), BUCHEON (7.6 NM ENE), Seoul (16.4 NM E), DANGJIN (24.7 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Incheon Lock Gate North Lighthouse still active and maintained?+
Yes, Incheon Lock Gate North 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.
How can I track vessels near Incheon Lock Gate North Lighthouse?+
You can track vessels near Incheon Lock Gate North 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.