Lindisfarne Island is a tidal island on the north side of England, close to the border with Scotland, in Northumberland. It is recorded in history from the 6th century, being an significant centre of Celtic Christianity. It can be accessed, most times, at low tide going through sand and mud flats. The island is part of an Area of Outstanding Natural Beauty. On the island there can be found a ruined monastery, a museum and the small Lindisfarne Castle, from the 16th century. The castle is a National Trust property and the island's main attraction. The following item on popularity are the ruins of Lindisfarne Priory. Accommodation requires to be researched and booked well in advance, there are limited number of rooms.