Although most of the time the torch with the Olympic flame is still carried by runners, it has been transported in many different ways. The fire travelled by boat in 1948 and 2012 to cross the English Channel and was carried by rowers in Canberra as well as by dragon boat in Hong Kong in 2008, and it was first transported by airplane in 1952, when the fire travelled to Helsinki. In 1956, all carriers in the torch relay to Stockholm, where the equestrian events were held instead of in Melbourne, travelled on horseback. Remarkable means of transportation were used in 1976, when the flame was transformed to a radio signal. From Athens, this signal was transmitted by satellite to Canada, where it was received and used to trigger a laser beam to re-light the flame. This distinctive 1976 torch was manufactured by John L. Saksun’s The Queensway Machine Products Ltd. In 2000, the torch was carried under the water by divers near the Great Barrier Reef. Other unique means of transportation include a Native American canoe, a camel, and Concorde. In 2004, the first global torch relay was undertaken, a journey that lasted 78 days. The Olympic flame covered a distance of more than 78,000 km in the hands of some 11,300 torchbearers, travelling to Africa and South America for the first time, visiting all previous Olympic cities and finally returning to Athens for the 2004 Summer Olympics.