Blue Volcanic River Waterfalls and Hot Springs Mud Bath Adventure in Rincon de la Vieja from Tamarindo. Be transported by bi-lingual guide from Tamarindo or La Cruz to a lush rain forest. Experience incomparable views, blue rivers, natural mineral hot springs, 80 meter waterfalls and much more. In the morning, hike in the rain forest for dips under the Grand Waterfalls and along an incomparable blue river. After a delicious lunch take dips in 4 different natural mineral hot spring pools and the fresh water pool with a bullet water slide and much more. Book and Save 10%! Blue Volcanic River Waterfalls and Hot Springs Mud Bath Adventure in Rincon de la Vieja from Tamarindo.