Diving in Cambodia offers a chance to explore virgin dive sites many of which are still waiting to be discovered. Checkout Sihanoukville and Kompong Som where divers can explore neighbouring islands with marine life considered better than neighbouring Thailand. Expect lots of coral, sting rays and rocky outcrops with further away islands available as an overnight excursion.
Visibility varies according to the seasons with the drier seasons from November to June offering optimum conditions.