Billown Circuit Billown Circuit The Billown Circuit is a motorcycle road-race course used for the Southern 100, the Pre-TT Classic races and the National Road Races meetings near Castletown on the Isle of Man. Racing is held on public roads closed for racing by an Act of Tynwald, the parliament of the Isle of Man. The course is 4.25 miles (6.8 km) long and is in the parishes of Arbory and Malew. The course start-line is on the outskirts of Castletown and the course includes parts of the primary A5 New Castletown Road, A28 Castletown to Ballabeg Road, A7 Ballasalla to Port
Castletown, Isle of Man of the town and island are illustrated in four Manx National Heritage sites in the centre of Castletown: Castle Rushen, the Nautical Museum (in the secret passage-filled home of inventor, politician, banker and probable smuggler George Quayle), the Old Grammar School (originally a church from AD 1200) and the Old House of Keys. Fishing boats still go out to fish from the harbour. Commercial traffic to the port ended in the 1970s, although there has been an ongoing expansion of financial and industrial businesses in the area. The first telephones appeared in Castletown in 1901. Castletown is, along with Douglas,