Hot Rocks Dive Site at Sangeang Island

Discover unique underwater geothermal activity

Information about Hot Rocks

Discover the fiery allure of Hot Rocks, a fascinating dive site located off the volcanic island of Sangeang in Indonesia. Renowned for its geothermal activity, this site offers divers a unique experience with its underwater hot springs and black sand slopes. The volcanic activity not only creates a mesmerizing underwater landscape but also supports a vibrant marine ecosystem.

At Hot Rocks, divers can witness the rare phenomenon of bubbles rising from the seafloor, a result of the island's active volcanic vents. This geothermal activity attracts a diverse range of marine life, including colorful nudibranchs, moray eels, and vibrant coral formations. The nutrient-rich waters around Sangeang ensure an abundance of fish species, making every dive a vibrant and lively adventure. For non-divers, the island offers breathtaking views of the volcano and opportunities for hiking and exploring its rugged terrain.

Diving at Hot Rocks is an adventure into an underwater world shaped by volcanic forces. The site is ideal for macro photography, with numerous small creatures and intricate coral formations providing endless photo opportunities. Whether you're an experienced diver or just starting, Hot Rocks offers a unique and unforgettable diving experience.

Interesting facts about Hot Rocks

Getting there: The best way to explore Hot Rocks is by liveaboard, providing seamless access to this remote and unique dive site. Departures are typically from Bali or Labuan Bajo.

Best time to visit Hot Rocks: The optimal time for diving here is from April to November, with water temperatures ranging from 27°C to 30°C (81°F to 86°F), ensuring comfortable conditions.

Diving Conditions: Expect water depths ranging from 5 to 30 meters (16 to 98 feet) with mild to moderate currents. The visibility is generally excellent, ranging from 15 to 30 meters (49 to 98 feet).

Our liveaboard trips: We offer several liveaboard options to Hot Rocks, typically lasting 7-10 days. These trips often include other premier dive sites around Komodo and Flores, providing a comprehensive diving experience.

A little-known fact: The volcanic activity at Hot Rocks not only creates stunning underwater features but also warms the water, making it possible to dive in comfort even with minimal thermal protection.