In 1964-1973, the significant expansion of the town and infrastructure were occurred. In recently, the town has grown substantially due to the influx of backpackers attracted by the opportunities for adventure tourism in a limestone karst landscape.Vang Vieng has become a backpacker-oriented town, with the main street including guest houses, bars, restaurants, internet cafes, tour agencies, and Western tourists. Townattractions include inner tubing and kayaking on the Nam SongRiver, until 2012 was lined with bars selling Beer Lao and Lao-Lao, and equipped with rope swings, zip lines, swimming and diving into blue lagoon, and large decks for socializing.