Palau
The Rock Islands
Drowned limestone islands, a jellyfish lake and current-fed channels.
Palau packs an unusual range into a small island group: drowned limestone Rock Islands with shallow, sheltered bays inside them, a marine lake you can snorkel among golden jellyfish, and channels where the tide carries sharks and mantas past. Almost all of it is reached by boat, and Palau manages its water seriously — permits, a conservation pledge and local rules are part of the trip, not an afterthought.