Phare du Sénéquet, Coastal lighthouse near Granville, France

Phare du Sénéquet stands on the rock of the same name 3.8 km off Gouville-sur-Mer. It is a tower of exposed stone painted white, with a black base and a black lantern; the photograph shows the lower half dark and the upper half white, with small rectangular windows and a gallery railing around the lantern. Its lantern was removed in 1981.

A beacon turret without a light first stood on the Sénéquet rock. After the paddle aviso l'Antilope ran aground there in fog on 14 December 1858 while assisting a merchant sailing ship off Carteret, a fixed red third-order light was lit on the truncated conical turret in 1861. The light became white and red with three occultations every 18 seconds in 1897, then three occultations every 12 seconds with propane gas in 1938. The optic was destroyed in 1942 and a three-flash, twelve-second light was lit in 1948.

The tower's black base and lantern, painted over exposed stone, mark the reef 3.8 km off Gouville-sur-Mer. At low spring tides, walkers reach the wreck site of the paddle aviso l'Antilope, sunk in fog on 14 December 1858; its crankshaft and paddle-wheel fragments remain visible at 49.04.815N 01.39.936W, a spot popular with shore fishermen.

The lighthouse stands on the Sénéquet rock 3.8 km off Gouville-sur-Mer, so it is reached only by boat; there is no causeway or foot access. At low spring tides the wreckage of the aviso l'Antilope, lost there in fog on 14 December 1858, emerges at 49.04.815N 01.39.936W and draws shore anglers.

At low spring tides, the wreck of the paddle steamer Antilope, which struck the Sénéquet rock in fog on 14 December 1858, becomes visible at 49.04.815N 01.39.936W: its crankshaft block and fragments of the engine and paddle wheels remain, a spot frequented by shore fishermen.