Easier singletrack than the other bits in the James River Park System.”
— Rob Tompkins
For every continuous inch of rain fallen, the trails should be left to dry for 24 hours.
This is a nice "lollipop" ride offering more beginner-friendly terrain than many of the surrounding trails.
From the "Mayo Bridge" on 14th street, look for a paved path on the upstream side of the south end of the bridge. Follow this to a road that also intersects the flood wall. Take a left continuing under the I-95 bridge. As you are under the I-95 bridge, look for a trail to begin on the right. This is the start of the lollipop. Follow this for a ways to the entrance of Ancarrow's Landing. Cross the road and follow the singletrack to the trailhead that splits. Note you'll need to know what day it is so you can follow the single direction trail.
After considerable rain, there may be small portions that may be wet and muddy. If mud is sticking to your tires, it is time to hit the road and wait for the trail to dry.