Today tourism is the main source of income in Altastenberg. The village is well known for its winter sport facilities. It is only a few hundred metres to the nearby skiing complex known as the Skiliftkarussell Winterberg. Immediately at the entrance to the village there are ski lifts, a langlauf trail (Loipe) and a ski jump (the Westfalenschanze). The so-called Sahnehang slopes are used in winter by skiers, snowboarders and tobogganists. In summer, too, the village is popular because it offers other sport and leisure facilities. The surrounding area is ideal for walking and hiking. Altastenberg lies on the Rothaarsteig long-distance hiking trail which runs over the Kahler Asten. There is also a one kilometre-long mountain bike arena for cyclists which has routes with various degrees of difficulty.