At over 50 miles long, the Virginia Capital Trail is the best bet for runners who want to train long distance. This paved path reaches southwest (roughly along the river/Route 5 corridor) all the way to Williamsburg/Jamestown. It features some rolling hills, which add interest whether you’re going for a quick jog, a tempo run, or a marathon-training sesh. On the Richmond end, the path is accessible from 1-95 near Great Shiplock Park. Simply continue running southeast and turn around when you feel you’ve reached your halfway point. It’s about 2 miles to Rockett’s Landing Marina, 4 miles to New Market Road, 6 miles to Battlefield Park Road, and 10 miles to 4 Mile Creek Park. This trail map has excellent information on trail segments, distances, and other features.