Blue Lagoon

For an afternoon respite from drinking in Vang Vieng head to the Blue Lagoon. 6 km outside of town, towards the mountains, is a popular swimming spot called the Blue Lagoon. The name comes from the turquoise water of the slow moving river (or was it a pond?). 

There are small huts for relaxing and mats for sun bathing. A dip in the lagoon is refreshingly cool. And if you get bored, you can climb up to a cave in the mountainside.