The Technique of Travel : Page 125

Accordingly, it is essential that the members of any touring party watch themselves for signs of fatigue, and plan for periodic rests. If a member of the party feels he should rest, he should not be too proud to say so. He'll cause the party less trouble if he rests before it is too late. Particularly important, a skier should rest efficiently when a stop is made—take off his pack to relieve shoulders and back, sit down on a convenient rock, log, or on his pack, and relax. He should at the same time avoid chilling, either by seeking shelter or by providing shelter with extra clothing. If the skis can be kept on, the feet will be kept warmer. On a sunny day it is easier to stop in a mixture of sun and shade and to control one's temperature by moving a yard or so than to add and remove clothing.