The city in which Calisto da Costa trained prior to his participation in the Sydney Olympic Games lies on which sea?
Calisto da Costa:  Costa was one of the ten East Timorese athletes who received training in Darwin, Northern Territory prior to his participation in the Sydney Olympic Games. Darwin, Northern Territory:  Situated on the Timor Sea, Darwin is the largest city in the sparsely populated Northern Territory, with a population of 142,300.
Timor Sea