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Île Penfret Lighthouse

Fl Red 5s🇫🇷Fouesnant, FROperational

Location & Light Range

About Île Penfret Lighthouse

Constructed in 1837, this square masonry tower rises 24 meters from a one-story keeper's house on the Île Penfret, the largest island in the Archipel des Glénan. Its lantern and gallery are painted red, complementing the white structure. The light emits a single red flash every 5 seconds from a focal height of 36 meters, visible for over 16 nautical miles. The lighthouse is situated about 18 kilometers south-southwest of Concarneau. Restoration and maintenance efforts by the preservation group Plein Phare sur Penfret began in 2012.

Why it matters: This active light is essential for navigating the Archipel des Glénan, a significant hazard off the Brittany coast, warning vessels of numerous shoals and rocks.

Light & Optic

Characteristic Signature
Fl Red 5s
Flash Type
Flashing
Light Color
Red
Interval
5s
Raw Code
Fl R 5s
Focal Height
36m
Geographic Range
16.4NM

Construction & History

Year Built
1837

Significant events: Preservation group Plein Phare sur Penfret began restoration and maintenance in 2012

References & Identifiers

Nearest Port
Concarneau(8.9 km)
Admiralty No.
D0922
NGA No.
444
ARLHS No.
FRA-047

Tower & Structure

Tower Height
24m
Tower Shape
square
Tower Color
white with a red lantern
Material
masonry

Structure: square masonry tower with lantern and gallery, rising from a 1-story keeper's house

Location

City
Fouesnant
Country
🇫🇷France
Region
Brittany
Sea Region
Located on an island, largest island of the group known as the Archipel des Glénan, about 18 km (11 mi) south southwest of Concarneau and 11 km (7 mi) southwest of Trévignon.
Latitude
47.7208°
Longitude
-3.9531°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Île Penfret Lighthouse at night?+
Île Penfret displays the characteristic Fl Red 5s. 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 Île Penfret Lighthouse guide vessels into?+
Île Penfret Lighthouse assists vessels approaching 5 nearby ports. The closest is Trégunc at 8.8 NM to the NNE. Other ports served include Port Manec'h (9 NM NE), Concarneau (9.3 NM N), LARVOR (10.4 NM WNW), Bénodet (11 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Île Penfret Lighthouse still active and maintained?+
Yes, Île Penfret 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 Île Penfret Lighthouse?+
You can track vessels near Île Penfret 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.