We will meet at the refreshment stand area near the tavern at the main entrance to the park in the Great Falls area on the Maryland side. (11710 MacArthur Blvd, Potomac, MD 20854).  From there we will proceed to the trailhead at the other end of the parking lot and back. That route totals just under 4 miles with 300 feet of elevation and a few mildly challenging ascents and descents. Those who prefer to avoid walking the full length of the parking lot can simply park at the far end of the lot and meet us at the trailhead to do the 3-mile trail itself. Those  who want more mileage can then walk down the towpath to the Olmsted overlook from the tavern and back, which is just over 1 mile with no significant elevation.  OR the River Trail from the tavern and back on the towpath would add another 2 miles with no elevation. Restrooms are available near the tavern and there are picnic tables for lunch afterward at the refreshment stand area. Bring lunch, water and your National Park Pass or be prepared to pay the park entrance fee.  Poles are recommended for ascents and descents and a few shallow stream crossings.