Low tide splendor: The Philippines is made up of more than 7,000 stunning islands. And then there are the thousands of additional shoals and sandbars that emerge during low tide, ready to be explored.

Set off the coast of Sablayan in the Philippines, Apo Reef Natural Park spans 13 square miles. This protected aquatic wonderland teems with marine life, including 530 fish species and 400 types of ...