The Tinian Channel is an eight kilometre-wide channel in the Northern Mariana Islands. It lies to the south of the island of Tinian(15°00'N., 145°38'E.) is northeast of Aguijan Island, separating it from the island of Aguijan. Together, the two islands form the Tinian Municipality.
Map of Tinian Channel, Tinian, CNMI
References
Tinian Channel Wikipedia(Text) CC BY-SA