Blockhaus du phare du Cap Ferret, Military bunker in Cap Ferret, France.

The Blockhaus du phare du Cap Ferret is a long, low concrete casemate built to standard plan 622, with a slightly curved facade and a thick overhanging roof edge. Its surface is painted in mottled brown and tan camouflage, and six protruding circular disks sit across the front in two rows of three. Two dark rectangular doorways open at ground level, with faint reddish markings nearby.

Built in 1943 by Organisation Todt to standard plan Regelbau 622, this bunker formed part of Atlantic Wall position Wn Ar 36 and was designed to shelter 19 men and equipment. German soldiers left on 20 August 1944, destroying the lighthouse as they withdrew. From 1944 to 1947 the bunker stored materials for the new lighthouse, then stayed empty until 2010, when the commune and GRAMASA began restoring it.

The site is named Wn Ar 36: Widerstandsnest (resistance nest) 36 of the Arcachon sector, numbered east to west and north to south. Since 2010 the GRAMASA association and the commune have run the restored interior as a museum, with a reconstructed 1944 living room and an exhibition room on the Atlantic Wall.

The bunker is located within the lighthouse park where visitors can access it during open hours. Guided tours and more detailed information about visiting are available through local organizations.

After 1944, the abandoned bunker was repurposed as a storage site for construction materials needed to rebuild the adjacent lighthouse. This unexpected second life reveals how wartime ruins were adapted for practical postwar needs.