The original jungle trail was made of timber salvaged from the park. It was easier to start at the top and bring the logs down rather than haul them uphill, said the billboard displayed at the entrance of the Puerto Princesa Subterranean River National Park in Palawan.
What can you see on the monkey trail? Monkeys, the only species of monkeys in the Philippines locally known as tsonggo and bayawak or (monitor lizards roaming around. Expect also pythons, plants and animals better left in the wild rather than caged in zoos.