Cross to Chau Doc, then bus to Long Xuyen then bus to Rach Gia. You'll need to overnight in Rach Gia as the boats only leave in the morning. Local bus charges are nominal. Depending on what time you get to Chau Doc, you'll be able to get to Rach Gia in a day from Phnom Penh.
Enjoy Phu Quoc - I loved it!
#2somtam2000 has been a member since 21/1/2004. Location: Indonesia. Posts: 8,062