@ lars2923: the most popular dive destination is Anilao, Batangas and Tubbataha reef in Palawan.
also, try to visit El Nido (Lagen & Miniloc Island Resort) and Coron in Palawan. also try Boracay, Puerto Galera, Bohol, Cebu and Dumaguete.
@ Diverep: did i miss anything? care to suggest other vacation/ dive spots? :D