Snorkelling & Scuba Diving in Cook Islands

The Cook Islands are renowned for their crystal-clear lagoons and vibrant marine life, making them an absolute paradise for underwater enthusiasts. Whether you're floating above colourful coral gardens with just a mask and snorkel or diving deep to explore dramatic drop-offs and caves, these islands offer some of the South Pacific's most spectacular aquatic adventures. From the protected waters of Muri Lagoon to the thrilling passages around Rarotonga and Aitutaki's world-famous lagoon, there's something for every skill level. Browse our comprehensive guides, crafted by writers who've explored these waters first-hand, to plan your ultimate snorkelling and scuba diving adventure.