The island's 12th-century priory was originally established by Edward the Confessor and gifted to the Benedictine monks of Mont Saint-Michel in Normandy.
A mummified cat was discovered inside the walls of the castle during 18th-century renovations.
The 'Giant's Well' is a local geological feature where, according to folklore, the giant Cormoran lived before being slain by the legendary Jack the Giant Killer.
The subterranean chapel contains a 'stairway to heaven' architectural feature that was designed to mimic the proportions of the original 12th-century altar.
The island's terraced gardens require specialized rope-access gardeners to maintain the cliff-face vegetation.
During the English Civil War, the mount served as a Royalist stronghold before eventually surrendering to Parliamentarian forces.
St Michael's Mount is a tidal island located in Mount's Bay, connected to the town of Marazion by a granite causeway that is walkable only at low tide. The site features a medieval church and castle originating from the 12th century, serving historically as both a monastic site and a defensive fortress. The island has been the home of the St Aubyn family since the mid-17th century. Visitors can explore terraced gardens carved into the cliffside that rely on the island's unique microclimate to support exotic sub-tropical plants. The castle interior displays a collection of historical artifacts, including an 18th-century samurai suit of armor. Because it is a tidal island, access relies entirely on the ebb and flow of the sea, which dictates daily entry patterns. The site remains managed by the National Trust in collaboration with the St Aubyn family.
The view from the mainland shoreline at Marazion beach looking toward the castle during sunset.
Check the tide tables specifically for Marazion before arriving, as the causeway is completely submerged at high tide.
Wear sturdy walking shoes, as the causeway consists of uneven, slippery cobblestones.
If the tide is in, use the boat service that operates from the beach at Marazion to reach the island.
Attempting to cross the causeway if the tide is already rising, as the water levels change rapidly and can isolate visitors.
The causeway is accessible only at low tide; the castle and gardens are subject to seasonal closures and reduced access during winter months.
Respect private family residence areas; maintain quiet in the chapel; wear non-slip footwear for the causeway.