Dive in and explore the shipwrecks, reefs and other unique habitats of these marine parks, which are home to a staggering amount of marine life.
1. Christmas Island National Park, Australia
This island has a unique ecosystem of plants and animals – including 45 million red crabs, which migrate from the forest to the coast yearly to breed. Dolphins and whale sharks thrive in the surrounding reef; divers can head out to the Java Trench, the deepest point in the Indian Ocean.
2. Dry Tortugas National Park, USA
Comprising seven islands, this remote national park in the Gulf of Mexico is home to one of USA’s largest 19th-century forts – and hundreds of shipwrecks. But the reefs that pose such hazards to ships are a habitat for an abundance of marine life, such as colourful reef fishes and nurse sharks.