You control Ryu in this level. You begin near a pathway decorated by arches. Head straight. Shortly after you get past the arches you'll come across a corpse. Examine it for a scroll about the Flying Swallow. As you approach the body, you'll be attacked by Ninjas. You know how to deal with these fellows. Press on and you'll face some more Ninjas. Kill them and continue on to find another corpse. Examine it to find an Herb of Spiritual Life. You'll come to a river. Hop in for a swim.