Río Santa Teresa offers spectacular rafting in the gorge between the towns of Santa Teresa and Santa María, and downstream as far as Quillabamba. One word of warning: the sec- tion from Cocalmayo Hot Springs to Santa Maríaconsists of almost nonstop class IV to V rapids in a deep, inaccessible canyon. It should only be run with highly reputable operators, such as local experts Cola de Mono (p290). Be very aware, if considering a trip here, that guiding this section safely is beyond the powers of inexperienced (cheaper) rafting guides. This is not the place to economise. Do not underesti- mate this section of river; raft another section in the area with your chosen operator before even considering it. At the time of research, some cheaper operators were looking at this section, and it seems unlikely they will  all resist  the  temptation  to  run  it.