Skijoring is a winter og- or horse-powered sport popularized in North America and derived from the Scandinavian sport of pulka. It involves a horse or from one to three dogs hitched directly to a human being on skis. Skijoring can also take place behind a snowmobile or an all terrain carrier such as the Bandvagn 206. In this case, several skiers or soldiers can be towed on the same rope. The rope is passed around the skiers skipoles and continues to the next person in line. Skiers then preferably hang on to their skipoles, supported by their arms. Straddling the rope, and "sitting" on the skipoles as shown on the "Skijoring in Norway" link is not advisable, since this means you can't easily let go of the rope in case of a fall.