This massive national park consists of six entire islands and offers a bounty of things to explore and admire. Upon its opening in 1973, this was the Indian Ocean's first national park. There are many ways in which you could explore and experience the underwater wonders of this incredible place such as snorkelling, scuba-diving or embarking on a glass-bottom boat. The animals that can be glimpsed within the park include crocodiles, and endangered Hawksbill Turtles who use certain sections of the park as nesting sites. There was a French settlement on the island during the late 1700s and as a result there are many ruins to explore, including a leper colony on Round Island. Moyenne Island in particular is the most lucrative, featuring reconstructed homes belonging to settlers, a tiny chapel, as well as many pirate graves. It's also a great place to snorkel and dive.