Footprints in Volusia County, Florida

First of all, I am a 57 year old H.S. & College Psychology and Humanities teacher with a background in phenomenon reasearch. I have two Masters degrees and I have often been nicknamed the "resident sceptic" because I demand scientific principles in real time for all observable data. I despise hoaxes. My wife and I were standing on a boardwalk on a bright, moonlit night around 11:30 p.m. I was looking north when I first saw it at about 100 yards. At first, I thought it was just a late night jogger. After it got about 50 yards closer I alerted my wife to "turn around" because I realized that this was not your "average jogger." It walked with a smooth, long stride with arms swinging about two feet in front and back. It was a uniform, solid black or brown ("shadowy") in color; no light face, hands or shoes. We watched it walk south right at the edge of the surf, southward until it disappeared down the beach. And I am quite sure that it saw us. I thought about yelling or "encountering" it but that thought lasted just for two seconds. This thing was walking fast, with a deliberate stride and a slight forward stance. It was "on a mission, as it were. There were no footprints because it was walking slightly into the water. I KNOW what I saw; my wife and I were in complete agreement on all of the details. I guess this is another incidence where I can only REPORT the data. There seems to no way to research it; unless someone else happened to see or confront it.