"This celebrated fortress stands on the summit of a verdant hill, gently sloping
towards the isthmus which connects it with the mainland but descending with more abruptness
towards the sea.... This fortress, which is built of Cornish granite, is proudly exalted on an
elevation upwards of 300 feet from the sea, from which the whole entrance of the
harbour is commanded."
Extract from "Pendennis and St. Mawes: An Historical Sketch of Two Cornish Castles" (Open Library)
Pendennis Castle is a English Heritage property with free entry for English Heritage members.