Inquiry Submission By Nat

Hi what is the most efficient route when travelling by booked/hired minivans from Siem Reap and finishing Phnom Penh? To go Kratie (see dolphins) first and then Sen Monorom (see elephants) or the other way around? I don’t have a lot of time and each tourist activity will be around 1/2 a day each. How long (days) Should I allow from start to finish including 1/2 day tourist activities?