Hidden beneath the ocean’s surface lies a secret Eden where ancient species still thrive in dazzling abundance. Far to the east of India and Indonesia, Palau sits alone at the edge of the vast Pacific, an archipelago of more than 200 islands. Along its shoulders flourish some of the richest coral reefs left on earth. Here, a vast array of underwater creatures, including nudibranchs, cone snails, cuttlefish and the banded sea snake seek shelter from the open water.