Heh now that I've settled Siem Reap to Phnom Penh, I'd like to find out if it's worth doing any detours enroute from Phnom Penh to Sihanoukville, if we're doing this by taxi. Should we have a look at Kep, or Kampot, or Bokor Hill Station on the way? How much longer will that make the journey? Er, for that matter, how long is the drive from Phnom Penh to Sihanoukville?