Bus to Phnom Phen
Several bus companies run trips to Phnom Phen, usually twice a day, early morning and early afternoon. The bus will pick you up at your guest house for the 3-4 hour trip. I don't know if the buses still run through Kep, a beach area 25 kms east of Kampot, but if they still do you will have some good views of the sea so try sit on the right hand side.

