Volcanic mineral waters flow up from the volcanic veins of Augas Zarcas, Costa Rica
Alongside the thermal waters is an inviting cool fresh river
And a stone sauna where the hot water comes up from the ground
The walk to the thermals from the parking lot is 3-4 minutes along a beautiful path. The facility is in harmony with the surrounding jungle and the feel is "pristine."
I invite you to visit the Termales del Bosque located in Costa Rica
http://termalesdelbosque.com
Here's the URL to find them direct and book your natural hot spring experience.