The Mile High Loop is a great way to explore Denver’s City Park. The 5K crusher fine trail runs through the park. You can start off by the north side of the Pavilion and head east. Ferrill Lake will be on the right and the Zoo on your left. Continue toward the Museum of Nature and Science. Follow the trail when it bends to the right and runs along the west side of the rose gardens. Wind around the museum as the trail continues across the open fields and toward Colorado Blvd before turning south and heading along the southern edge of City Park. Hike along the south side of Ferril Lake and enjoy the shaded sections through the trees. After the roundabout at Thatcher Fountain, turn north and head along the edge of the park that parallels York Street until you reach 23rd Ave. Here the trail loops back by the tennis courts and then goes past Duck Lake.