The Territory of Cocos (Keeling) Islands is an Australian external territory in the Indian Ocean, comprising a small archipelago approximately midway between Australia and Sri Lanka. It is part of Southeast Asia and is in the Southern Hemisphere. The territory’s dual name (official since 1955) reflects that the islands have historically been known as either the Cocos Islands or the Keeling Islands. The Cocos (Keeling) Islands have fifteen kilometres (9.3 miles) of highway. There is one paved airport on the West Island. A tourist bus operates on Home Island. The only airport is Cocos (Keeling) Islands Airport with a single 2,441 m (8,009 ft) paved runway. Virgin Australia operates scheduled jet services from Perth Airport via Christmas Island. After 1952, the airport at Cocos Islands was a stop for airline flights between Australia and South Africa, and Qantas and South African Airways stopped there to refuel. The arrival of long-range jet aircraft ended this need in 1967. An interisland ferry, the Cahaya Baru, connects West, Home and Direction Islands.