Trail riding is riding outdoors on trails, bridle paths, and forest roads, but not on roads regularly used by motorised traffic. A trail ride can be of any length, including a long distance, multi-day trip. It originated with horse riding, and in North America, the equestrian form is usually called "trail riding", or, less often "hacking". In the UK and Europe, the practice is usually called horse, pony or donkey trekking.