These are from the two-day whitewater rafting trip I took with Wildside…an ecotourism and adventure trekking tour organizer in Laos. I highly, highly, highly recommend them…this trip was the most fun I’ve had in Laos.
Click here for Raft on the Wildside, Part 1

Here's a nice scenic photo of the river, that shows some of the carved river rocks. During the rainy season, the Mekong covers those rocks...running 10-30 feet higher, depending on the area.
Because of this, the rapids change all the time, so we stopped and scouted out every rapids before going over. (Wildside does take safety seriously, unlike many tour operators in Laos.)