Reserva Natural Aguas Calientes, in Paratebueno, Cundinamarca, Colombia, offers thermal water with a pH of 7.3. An open-air pool allows wild bathing within a natural reserve.
Insider tip — The Reserva Natural Aguas Calientes in Paratebueno sits at the edge of the Eastern Llanos and the Andes Cordillera, in a unique transition ecosystem. The natural hot springs rise in the heart of the tropical forest — a nature retreat accessible from Bogotá in 3 hours.