A beautiful riverside retreat inside Phong Nha-Ke Bang National Park, the wooden walkways and paths of the Nuoc Mooc Ecotrail extend over a kilometre through woods to the confluence of two rivers. It’s a beautiful place for a swim, where you can wallow hippo-style in turquoise waters with a limestone-mountain backdrop. Recently added attractions include an exciting rope bridge straight from an Indiana Jones movie, and kayaking on a compact weir on the river.

Bring a picnic, or order food and drinks and dine in one of Nuoc Mooc's breezy open-air pavilions. Nuoc Mooc is 12km southwest of Son Trach, and is a great place to spend a relaxed day taking your foot off the travel accelerator.