One other thing I didnt see anyone mention regarding the ride in. By the sounds of it your on horse back for a fair ride in. Most people do not ride horses often enough to become accustomed to the normal wear and tear a saddle will put your butt and legs through! You may become stiff, sore groin and possible saddle sores on your hind end...invest in a pair of Under Armour brand pants and wear them as your first layer of clothing. If you are not familiar with them they are a moisture wicking material that will allow your sweat to wick away from your body but will allow your pants etc to glide over the material and not chafe your buttocks! As for the stretching find a routine that works your glutes,groins hams and legs.Find info on strenghtening your inner core it will help with the horseback and hiking/packing on foot. I spend approx. 3-4 hours daily on horse back all year round and it is inperative that you stay in shape!!