Papallacta is a small Andean village perched at around 3,300 metres, about 65 km east of Quito on the road toward Tena and the Amazon lowlands. It's known for two things: its geothermal hot springs and its fresh trout, raised in the cold mountain streams nearby.
The Termas de Papallacta hot springs are the main draw. The public pools are well-maintained, divided into a range of temperatures from bracingly cold river water to searingly hot, and entry costs just a few dollars. A more upscale spa complex sits adjacent to the main pools with private baths and massage treatments. After a long hike or a cold Andean night, soaking here feels exactly right.
The surrounding páramo — the high-altitude grassland ecosystem — is part of the Cayambe-Coca Ecological Reserve and worth exploring if you have the legs for it. Trails lead up into cloud forest and past the lagoons that supply Quito's drinking water. The birding is excellent for those who make the effort.
Papallacta works well as a day trip from Quito but is equally good as an overnight stop en route to the jungle lowlands.