Laos can be reached by bus and many visitors to Cambodia grab the opportunity to see another Asian country whilst being around.
Laos Visas are easy to acquire whilst a ride to Vietnam requires a regular Visa with full application.
The landscape between Cambodia and Laos is very green and dominated by the heavy impact of the huge regular floods.
These Laos Border Buses look more comfortable than they are and it takes almost a full day to get there from Phnom Penh.