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One way to get from Sihanoukville to Koh Kong (or vice versa) is the fast ferry (USD25-30 for foreigners) running, as of March 2009, every other day, which leaves around 08:00-08:20 and takes 4-5 hours - however this option is not the best if the weather is less than favorable and there's a heavy swell. Boats have a tendency to be extremely smelly and noisy inside (dieselfumes, khmerkaraoke) - travel on the rooftop is fun in nice weather, don't forget to apply a good sunscreen.

Please keep in mind, that these bulletstyle boats have no or very limited safety features as required by other nations public transport vessels. Their only exit is a mere manhole (a steel door) in the enclosed hull of about 120 by 65 cm.

Koh Kong is also linked to Phnom Penh and Sihanoukville via Sre Ambel by National Route 4. The road is now completed including all 5 bridges (May 2008). It's a good scenic drive through some of Cambodia's least developed and unspoiled regions - Cardamom mountains. Minibuses and tourist air-con buses leave Koh Kong mainly in the mornings (but some do even in the afternoon, probably depending on number of passengers available). On the way back, they usually leave in the morning and arrive to Koh Kong in the afternoon. Expect to pay about USD8-12 (USD8 or 10 is a price often asked in Sihanoukville travel agencies for the ticket back to Koh Kong).

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  Since high contamination by heavy metals has been found in Malaysian tongkat ali extract.