The Jones Falls Trail is a 9.1-mile paved trail for hikers and bikers. The southernmost trail head begins at the inner harbor, and heads north paralleling I-83 (The Jones Falls Expressway), through Druid Hill Park, around the Maryland Zoo, through Woodberry, Cold Spring Park, then landing at the northernmost point at the Cylburn Arboretum. We ran a portion of the trail from the Maryland Zoo to the Cylburn Arboretum, which spanned more than 7 miles there-and-back.