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Prévenan, Tréguier, and Pleubian Lighthouses Lighthouse

Fl White/Red/Green 4s🇫🇷Penvénan, FROperational

Location & Light Range

About Prévenan, Tréguier, and Pleubian Lighthouses Lighthouse

This cylindrical stone lighthouse, built in 1858, was initially a daybeacon and did not become operational until 1889. Its white-painted tower stands 12 meters tall, with the light positioned at 17 meters. The light, visible for 12.4 nautical miles, displays a single white flash every 4 seconds, with red and green sectors also used for navigation. Located in the Port-Blanc district of Penvénan, France, the site is open to the public, though the tower itself is closed. Residents were angered by the delay in its lighting, leading to the local nickname 'Thief's Tower'.

Why it matters: The lighthouse's nickname, 'Thief's Tower', reflects local frustration over delayed navigational aids, making it a point of historical interest. Its sector light is essential for guiding vessels into the Port-Blanc harbor.

Light & Optic

Characteristic Signature
Fl White/Red/Green 4s
Flash Type
Flashing
Light Color
White/Red/Green
Interval
4s
Raw Code
Fl 4s
Focal Height
17m
Geographic Range
12.4NM

Construction & History

Year Built
1858
First Lit
1889

Significant events: Built as a daybeacon in 1858, not lit until 1889, residents angered by lack of proper lighthouse planned in 1882

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 stone tower with a domed top, painted white; the light is displayed through a window midway on the tower

Location

City
Penvénan
Country
🇫🇷France
Region
Brittany
Sea Region
Port-Blanc, the port district of Penvénan
Latitude
48.8367°
Longitude
-3.3094°

References & Identifiers

Nearest Port
Treguier(4.4 km)
Admiralty No.
A1768
NGA No.
7824
ARLHS No.
FRA-407
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Frequently Asked Questions

How do mariners identify Prévenan, Tréguier, and Pleubian Lighthouses Lighthouse at night?+
Prévenan, Tréguier, and Pleubian Lighthouses displays the characteristic Fl White/Red/Green 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/red/green color may indicate a specific sector or warning zone.
Which ports and harbors does Prévenan, Tréguier, and Pleubian Lighthouses Lighthouse guide vessels into?+
Prévenan, Tréguier, and Pleubian Lighthouses Lighthouse assists vessels approaching 5 nearby ports. The closest is Plougrescant at 3.1 NM to the ENE. Other ports served include Tréguier (4.6 NM SE), Perros-Guirec (5.7 NM WSW), Lanmodez (8.3 NM E), Lannion (8.3 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Prévenan, Tréguier, and Pleubian Lighthouses Lighthouse still active and maintained?+
Yes, Prévenan, Tréguier, and Pleubian Lighthouses 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 Prévenan, Tréguier, and Pleubian Lighthouses Lighthouse?+
Prévenan, Tréguier, and Pleubian Lighthouses Lighthouse is located within the English Channel / North Sea corridor — one of the world's busiest maritime corridors connecting the Atlantic to Northern European ports. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Prévenan, Tréguier, and Pleubian Lighthouses Lighthouse?+
You can track vessels near Prévenan, Tréguier, and Pleubian Lighthouses 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.