Nayara Tented Camp Arenal National Park,21007, Arenal, Costa Rica

The spa’s open-air treatment rooms are cantilevered over the rain-forest with a natural soundtrack of a babbling creek below and the chirps of birds and frogs in the trees. Each has its own plunge pool where guests can relax after a treatment. One of the most popular treatments is the volcanic mud massage, mud which the local people believe to have restorative properties. There is also a full gym with views to the volcano.