For those of you looking for a different type of workout, try riding a horse about 15 to 20 miles. Endurance riding is a great workout. I don't actually ride in endurance rides, but a friend of mine does. When he is working his horses, I'll sometimes ride with him. We'll ride anywhere between 15 to 20 miles in an hours time. These horses are Arabians and they're just green broke. You do not completely break endurance horses because they lose a little bit of competitiveness. Anyway, after about 10 miles your butt is hurting, but that's not all. Your calves are burning from posting in the saddle. Your shoulders are burning from holding the horse back. Believe me, it's a complete body workout, but it's fun.