Waluwalu Seasnake Sanctuary of Olutanga Island, Zamboanga Sibugay, Philippines is a well-known tourist spot in Western Mindanao. Around 8 thousand seasnakes of different shapes and sizes are taken cared of by Noy Tiro. From Zamboanga City, a boat going to Olutanga Island costs around 320 pesos. Travel by boat is overnight. Trips are only during Mondays and Fridays.
From Olutanga Island proper to the seasnake sanctuary is only around 45 minutes. You will be renting a boat from Noy Tiro (the seasnake caretaker) that can accommodate at most 8 people. You will pay 1,500. This is already good for back and forth. The most ideal time to go there is during early in the morning because it is high tide.