The Peak Adventure Tour Company. This company takes groups, including beginners, on tours to rock faces in the mountains around Chiang Mai. One-day tours cost B1,800, and three-day intensive training sessions, including accommodations, can be booked for B6,500. Peak Adventure also offers other adventure activities, from white-water rafting to quad biking. 302/4 Chiang Mai–Lamphun Rd., Chiang Mai, Chiang Mai, 50000. 053/800567; www.thepeakadventure.com.