St. Michael's Mount is a small tidal island located off the coast of Cornwall, England. It features a medieval castle and a picturesque village, both of which are popular tourist attractions. The island is connected to the mainland by a causeway that is accessible during low tide. The island is named after Saint Michael, the archangel, and has a rich history dating back to the 12th century. It has served various purposes over the years, including a monastery and a fortress. Today, St. Michael's Mount is managed by the National Trust and remains a significant cultural landmark.