Who hasn't wanted to get a private massage by a volcanic thermal river? Simbiosis Spa has everything you need. Enjoy thermal hot spring waters, mud baths, saunas and more, all in a more private experience. A must do while nestled on the volcanic slopes of the Rincón de la Vieja volcano in Guanacaste, Costa Rica. At the Colorado River they can also offer baths, massages and body treatments to increase rejuvenation. The spa begins with the reception area where you can find the changing rooms. It is recommended to start with 10 to 15 minutes in the sauna to open the pores of your skin and afterwards apply pure volcanic clay all over your body. Wait a while and then feel the immediate effect on your body after a relaxing shower.