Rio Perdido translates as the ‘lost river’, but you won’t be getting lost with this aerial adventure over the river canyon. You’ll take on a Tarzan swing, a 90-foot challenge bridge and five zip lines, with a top height of 800 feet. Then, you can lie back as you tube down the river. You won’t be alone as brightly-coloured birds and monkeys look on from the forest. Keep an eye out for the hot water spouts along the rock walls, too. After lunch, it’s time for another dip, but this time in the warm mineral-rich waters of the thermal river. The thermo-mineral gorge is the centrepiece of this 600-acre reserve – drawing its energy from the deep magma flow. You’ll also head south to the hot river pool where you can slather each other in vitamin-enriched volcanic mud.