Tevennec lighthouse, Stone lighthouse on Île-de-Sein, France
The Tevennec lighthouse stands 11 meters tall on a rocky outcrop between mainland France and Île de Sein, marking the Raz de Sein passage.
The lighthouse, designed by architect Leonce Reynaud, began operating in 1875 to guide vessels through the dangerous Chaussée de Sein coral reef system.
Local fishermen documented numerous accounts of strange sounds from the cave beneath the lighthouse, which echo through the structure during storms.
The lighthouse operates automatically since 1910 and emits white light signals visible from 12 nautical miles to guide ships through the maritime passage.
The first keeper, Henri Guezennec, reported hearing unexplained voices, leading authorities to change the station from single to double-keeper operation.
Location: Île-de-Sein
Inception: 1875
Architects: Leonce Reynaud
Elevation above the sea: 295 m
Height: 11 m
Made from material: stone
GPS coordinates: 48.07136,-4.79539
Latest update: August 27, 2025 17:26
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