This small island bears the same name as its better-known counterpart in Normandy. Following the apparition of the archangel Michael at the end of the 5C it has attracted numerous pilgrims. The monastery was transformed into a fortress from the 15C; it then became a private residence when it was purchased by John Aubyn in 1647. The castle features a mix of 14C-18C architectural styles. The port and narrow streets below it are a hive of activity in the busy summer season.
castle: mid Mar-end Oct: Sun-Fri 10.30am-5pm (5.30pm in Jul-Aug), Nov-end Dec: Tue and Fri guided tour only 10.30am and 1.30pm, last week Dec Tue-Fri 10.30am-4pm; gardens: mid Apr-Jun: Mon-Fri 10.30am-5pm; Jul-Sep: Thu-Fri 10.30am-5pm (5.30pm in Jul-Aug)