The Tañon Strait is a body of water, separating the islands of Negros and Cebu in the Visayas, Philippines. The strait, which is about 160 kilometres long, connects the Visayan Sea in the north to the Bohol Sea in the south. Its width varies from 5 to 27 kilometres, with the narrowest point in the south. In the north the strait is closed off by the Don Islands, the larg…The Tañon Strait is a body of water, separating the islands of Negros and Cebu in the Visayas, Philippines. The strait, which is about 160 kilometres long, connects the Visayan Sea in the north to the Bohol Sea in the south. Its width varies from 5 to 27 kilometres, with the narrowest point in the south. In the north the strait is closed off by the Don Islands, the largest of which is Bantayan. The cities of San Carlos, Negros Occidental, Bais, Negros Oriental and Toledo, Cebu have deepwater port facilities. The Tañon Strait is known for whale and dolphin watching, with tour boats operating from Bais.