Pendeen is a village and ecclesiastical parish on the Penwith peninsula in Cornwall, England. It is 3 miles north-northeast of St Just and 7 mi (11 km) west of Penzance. It lies along the B3306 road which connects St Ives to Land's End and the A30 road.

Chûn Castle is a large Iron Age hillfort (ringfort) near Penzance in Cornwall, England, United Kingdom. The fort was built about 2,500 years ago, and fell into disuse until the early centuries AD when it was possibly re-occupied to protect the nearby tin mines. It stands beside a prehistoric trackway that was formerly known as the Old St Ives Road and the Tinners’ Way. The name Chûn derives from Cornish: Chi an Woon. The area is now sometimes known as Chûn Downs. Nearby is Chûn Quoit.