The village of Coconuco, 26km from Popayán, is a short hop to two rudimentary outdoor thermal baths. The better maintained and more pleasant of the two is Termales Agua Tibia, 5km southwest of Coconuco on the road to San Agustín. Set at the base of a steep-sided valley with great views, the complex has five lukewarm pools, a bottom-jarring concrete waterslide and a mud spring rich in rejuvenating minerals. There is no place to lock up valuables.
The indigenous-run Agua Hirviendo, 3km east of Coconuco, is less picturesque than Agua Tibia but it’s open around the clock, its sulphur-reeking pools are far toastier, and the on-site waterfall is a refreshing shock to the system. Basic cabins are available for rent and a restaurant serves meals until late.