Mekong Delta (Vietnam). 'The food bowl of Vietnam, the Mekong Delta is an overwhelmingly green expanse but surprisingly heavily populated all the same. Those longing for a taste of local life far from fellow travellers will find it in many of the small, isolated cities in the Mekong’s forgotten (by tourism at least) corners.' http://www.lonelyplanet.com/vietnam/mekong-delta
Border Crossing and Visa Requirements in Laos - Vietnam
A lot of travellers do “The Loop” while backpacking in Asia. The slow boat to Laos offers a local experience with beautiful scenery and a perfect place to meet fellow travellers to continue your trip with.