Phnom Penh (3 days) --bus-->Battombang (2 days) --boat--> Siem Reap (3 days) --bus--> Phnom Penh and fly home.
People who've been to Cambodia: How does this sound? Is there somewhere better I should check out? Do you know of any cool places that might not make it into the guide books or might be easily overlooked? Know of any good hotels? I need advice people!