At the end of the road, 12 kilometers from Baños Morales and 2,500 meters above sea level, barren Baños Colina is a no-frills hot springs with rocky, exposed campsites charging about US$4 per person. Summer pack trips across the Andes to Argentina start here (only organized tour companies such as Cascada Expediciones can easily handle the logistics), but there are opportunities for shorter rides in the vicinity.
Several companies offer transportation (about US$16 pp including access to the baths), usually on weekends but occasionally during the week. These include Expediciones Manzur (tel. 02/6435651), which leaves from Plaza Italia Saturday and Sunday at 7:30 a.m.; Buses Cordillera (tel. 02/7773881), from Alameda and San Ysidro, Wednesday, Saturday, and Sunday at 7:30 a.m.; and Alicia Miranda (tel. 02/7372844), from Alameda and Santa Rosa, Thursday, Saturday, and Sunday at 7:15 a.m. These buses generally return at 5 p.m. Space permitting, it’s possible to stay overnight and return another day.