Indonesia

Raja Ampat is a biological hotspot.

When a ship recently ran aground here, damaging a swathe of reef, it caused outrage. But destruction was localised and the region is still home to some of the richest, most diverse coral reefs on the planet – over 200 diving spots are still pristine – and this, paired with a growing ecotourism offering, means Raja Ampat will no doubt remain king of the islands.