Journey North of Vang Vieng to explore the Ban Tham Xang, a cluster of four caves just across the Nam Xong, with Tham Xang (Elephant Cave) at its gateway. Northmost is Tham Hoy (Shell Cave), which is named after Hoysang, a hero who protected his aunt from giants in this tunnel with no known end. Moving south along the canal, Tham Loup (Hole Cave) appears as a huge cleft created by Laos’ massive mythological elephant, Siho, to hide from his enemies. Further along, the 500m-long Tham Nam (Water Cave) was once an intricate wooden irrigation system and now a mysterious experience for thrill-seekers. It takes 40 minutes to pull yourself through the cave using a rope. Depending on the season, you may have to walk with your tube over certain parts of the cave.

Location: Travel north of Vang Vieng on Route No.13 for about 14 km, and turn left (west) between KM 169 and KM 170. Follow the road and cross the river to reach the entrance.