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La Croix Lighthouse

Oc (3) White 12s🇫🇷Concarneau, FROperational

Location & Light Range

About La Croix Lighthouse

Also known as: La Croix (feu antérieur)

The La Croix Lighthouse, a white cylindrical stone tower standing 12 meters tall, was built and first lit in 1848. It rises from a small enclosure containing a 1-story equipment room and is topped by a lantern and gallery. Located on the Concarneau waterfront, it marks the entrance to the harbor from Baie de la Forêt. The light emits three white occulting flashes every 12 seconds, with a focal height of 14 meters and a geographic range of 11.6 nautical miles. The site is open to the public, but the tower is closed.

Why it matters: This lighthouse serves as the front marker for a navigational range, aligning with a rear light on the Beuzec-Conq church spire to guide vessels into Concarneau harbor.

Light & Optic

Characteristic Signature
Oc (3) White 12s
Flash Type
Occulting
Light Color
White
Flash Count
3 flashes
Interval
12s
Raw Code
Oc(3) W 12s
Focal Height
14m
Geographic Range
11.6NM

Construction & History

Year Built
1848

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
12m
Tower Shape
cylindrical
Tower Color
white
Material
stone

Structure: round cylindrical stone tower with lantern and gallery, rising from a small enclosure with a 1-story equipment room

Location

City
Concarneau
Country
🇫🇷France
Region
Brittany
Sea Region
Concarneau waterfront, marking the entrance to the harbor of Concarneau from the Baie de la Forêt
Latitude
47.8692°
Longitude
-3.9184°

References & Identifiers

Nearest Port
Concarneau(0.2 km)
Admiralty No.
D0928
NGA No.
0472
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Frequently Asked Questions

How do mariners identify La Croix Lighthouse at night?+
La Croix displays the characteristic Oc (3) White 12s — 3 white flashes every 12 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does La Croix Lighthouse guide vessels into?+
La Croix Lighthouse assists vessels approaching 5 nearby ports. The closest is Concarneau at 0.3 NM to the NE. Other ports served include Trégunc (3 NM ESE), La Forêt-Fouesnant (3.9 NM NW), Fouesnant (4.4 NM WNW), Port Manec'h (6.3 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.
Is La Croix Lighthouse still active and maintained?+
Yes, La Croix 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 La Croix Lighthouse?+
You can track vessels near La Croix 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.