This is a real photo from an out of this world place. The Tabacon Resort in Arenal boasts by far the most expansive and beautiful hot springs in the area. There are many people coming to these springs so take some time to wander through the paths surrounding them to find your own private place to sit and take in the rainforest that surrounds you. If you are looking to get away from it all this is the place to do just that.
Tabacon Resort guests have unlimited access the hot springs, but non hotel guests must buy a day pass. My suggestion is to stay at the fabulous Tabacon (A Leading Hotel of the World property) and hop in and out as you please.