La Tour Gabriel is located at the base of the west side of the famous Mont Saint Michel island. The abbey is surrounded by a large area that is covered with water at high tide but dry at low tide. The light was displayed "from 2 hours before to 1-1/2 hour after high water," according to an 1895 light list. During this brief interval it was possible for small boats to approach the abbey. The light was discontinued in 1904 when it was observed that no boats were making use of this service.

ARLH Number: FRA-760
Build: 1827
Construction: stone
Height: 8 m
GPS: 48 38 07 / -1 30 70