Denarau, located on the western side of Viti Levu, Fiji's main island, is a hub of luxury and relaxation. While primarily known for its world-class resorts and golf courses, Denarau also serves as a gateway to some of Fiji's most spectacular dive sites. Its proximity to the Mamanuca and Yasawa island groups ensures that divers have ample underwater worlds to explore.

The Supermarket: Known for its incredible shark encounters, The Supermarket is a top spot for those looking to dive with reef sharks, including white-tips and black-tips. Given the active marine life and the occasional currents, it's best suited for divers with experience.

The Caves: A series of interconnected caverns and swim-throughs make this site a thrilling experience for those seeking some underwater adventure. Inside the caves, divers can encounter sleeping sharks and rays, adding to the mystique.

Mamanuca's Coral Gardens: A short boat ride from Denarau, the Mamanuca Islands offer stunning coral gardens that are perfect for novice divers. With gentle currents, colorful corals, and an array of marine life, it's an underwater haven for beginners.

Navini Serene Reefs: With shallow waters and an abundance of marine life, this is an ideal spot for new divers to familiarize themselves with Fiji's underwater world.

The waters around Denarau boast a diverse array of marine life. From the vividly colored parrotfish and angelfish to the larger marine creatures like turtles, rays, and reef sharks, divers are sure to be enthralled. Soft and hard corals paint the underwater landscape, providing homes for smaller critters such as nudibranchs, shrimps, and crabs.

The tropical climate ensures warm water temperatures ranging from 77°F to 86°F (25°C to 30°C) year-round. Visibility varies but can stretch up to 100 feet or more during the dry season, which runs from May to October. Divers should be mindful of the wet season between November and April, which can bring heavier rainfall and reduced visibility.

Diving in and around Denarau is competitive in terms of pricing due to the numerous dive operators catering to the region's many tourists. A typical dive might cost anywhere from $70 to $130, but many operators offer multi-dive packages or courses which can provide better overall value.

In conclusion, while Denarau itself is a luxurious escape on land, its surrounding waters offer a vibrant and dynamic underwater world. Both novice and seasoned divers will find an array of dive sites to match their skill levels, ensuring that every dive is a memorable one.