13km route from Shendu Town (深渡镇) and passing Changxi Village (昌溪乡) until it merges back onto S347 main road.
Going south to north, shortly after Changxi Village and crossing the bridge, the road runs through large rape fields that are in bright yellow bloom from mid/end March.
The road is partially asphalt, mainly concrete, a little rough in some places. But still good to ride. The views make up for any bump in the road ;-)