If you are going to walk the gorge trail at Watkin Glen SP make sure you drive to the upper and walk the gorge trail to the lower. It's down hill from the upper and about 800 steps (real steps like a stairs), and 1.5 miles. At times they have a shuttle back to the upper to get your car but you have to check, it is not always running. You can walk the Indian trail back to the upper which is 1.1 miles and relatively flat once you get up to it (which is a big stair climb right at the beginning).