The Hermitage Rock is a tidal islet, next to Lâ€™Islet, the tidal island now occupied by the 16th century Elizabeth Castle. Elizabeth Castle is a castle in Saint Helier, Jersey. Construction was started in the 16th century when the power of cannons meant that the existing stronghold at Mont Orgueil was insufficient to defend the Island and the port of St. Helier was vulnerable to attack by ships armed with cannon.
A project to link the castle to the mainland as part of an ambitious harbour project in the 19th century was abandoned. A breakwater linking L’Islet to the Hermitage Rock on which the Hermitage of Saint Helier is built remains, and is used by anglers.
Online map of the Hermitage Rock: