Speed Ferry Cambodia is the top leading boat service between Sihanoukville, Koh Rong, and Koh Rong Samloem. In Cambodia, speed boat is the way to travel to these islands, taking only an hour! You can choose between the 120 seat capacity catamaran “Princess” sail to Koh Rong, or the 35 seat “Fastcat” to Saracen Bay and M’Pai Bay on Koh Rong Samloem. Take a speed boat from Sihanoukville to Koh Rong and start your trip faster! See below for the Koh Rong ferry timetable!