December 2015 - Levant Mine and Beam Engine is a National Trust property at Trewellard, Pendeen, near St Just in Cornwall. Its main attraction is that it has the world's only Cornish beam engine still operated by steam on its original site. There is also a visitor centre, a short underground tour, and a cliff-top footpath that leads to Botallack Mine. The property is on the site of the former Levant Mine, established in 1820 and closed in 1930, where tin and copper ores were raised. The mine reached a depth of about 600 metres. It got the nickname "mine under the sea", because tunnels were driven up to 2.5 km from the cliffs under the sea.