Beach Diving & Snorkeling – Explore Sihanoukville’s Underwater Wonders

Diving is one of the top attractions in Sihanoukville, with much of Cambodia’s diving activity centered around this coastal town. Most dive sites are located around the islands scattered across the Gulf of Thailand, roughly two hours by boat from the mainland. Local dive centers offer convenient day trips for both diving and snorkeling, making the experience accessible even for short-term visitors.

Compared to Thailand’s more popular islands, diving in Sihanoukville is less commercialized and more pristine. Many sites remain relatively unexplored, and local operators continue to chart new spots, giving divers a true sense of discovery. This adventurous edge, combined with unspoiled marine environments, makes the area a special destination for underwater exploration.

Diving Season

The best time to dive in Sihanoukville runs from late October to the end of June. During these months, the seas are generally calm, visibility is better, and conditions are ideal for exploring both shallow reefs and deeper waters.

Water Temperature

The waters around Sihanoukville stay pleasantly warm throughout the season, ranging between 27°C and 31°C. These comfortable temperatures allow divers to enjoy long sessions without the need for heavy wetsuits, making it beginner-friendly and relaxing.

Visibility

Visibility in the region typically ranges from 10 to 25 meters, depending on the season and the specific dive site. The dry season generally offers the clearest conditions, giving divers excellent opportunities to observe marine life and coral reefs in detail.

Dive Conditions

Most dive sites around the islands feature soft currents, making drift diving a safe and enjoyable option. Depths average around 15 meters, which makes the area suitable for beginners while still offering plenty of excitement for more experienced divers. The manageable conditions also mean snorkeling is just as rewarding for non-divers.

Why Dive in Sihanoukville?

The combination of warm waters, increasing marine biodiversity, and a relatively low-impact diving scene makes Sihanoukville one of Southeast Asia’s hidden treasures. Divers here can enjoy an underwater world that feels authentic and less crowded than in neighboring countries, creating a rare blend of adventure, tranquility, and discovery.