Only the north side of the park in the rain forest, has blue rivers and natural hot springs. Great place to visit for nature and Eco-adventure. Blue River Resort & Hot Springs has several hot springs pools that are natural mineral "green", fresh water pools with bullet water slide, a blue river, natural mud bath and sauna, botanical gardens with over 700 varietals, bird sanctuaries and many lagoons for turtle, fish & caiman, a butterfly gardens, spa and gym. Lots to do and 720 sq ft cabanas with a/c, 42" TVs, mini fridge etc. Then set off into the jungle for horseback riding to grand waterfalls, zip lining, water tubing, rafting, nature hikes, bird watching and more.