Arenal, Costa Rica
Enveloped by the lush rainforests of northern Costa Rica's Arenal region, the award-winning Tabacn Grand Spa Thermal Resort sits at the base of the commanding Arenal volcano. For the adventure seeker and leisure traveler alike, activities at Tabacn revolve around its natural thermal river with 12 hot spring pools and lagoons, set against the backdrop of cascading waterfalls, exotic gardens, and trails. Treatments at the 35,000-square-meter Grand Spa are taken in 11 open-air bungalows in the heart of the rainforest. Guests can indulge in the signature Tabacn Massage, which incorporates volcanic mud, or opt for the Native American Temazcal.