Laos ' high annual rainfall, mountainous terrain and extensive river system create some of the most impressive waterfalls in the world. In fact, the largest waterfall by volume in Southeast Asia, KhonePhapeng, is located in Laos. Laotian people often use waterfalls (called tad in Lao language) for weekend getaways, picnics and family get-togethers. Thus, many waterfalls have relaxing rest stops, accommodation and locally guided tours. Below is a list of some of the more popular waterfalls in Laos.