cricket is also a popular sport in alice springs. the imparja cup cricket carnival started in 1994. teams from indigenous communities come from all across australia. a unique sporting event, held every year, is the henley-on-todd regatta. this is also known as the todd river race. it is a sand river race with bottomless boats. it is the only dry river regatta in the world. another unusual sporting event is the camel cup. this is also held every year at the local racetrack, blatherskite park. it is a full day event with races using camels instead of horses.