Doug, I was using manual exposure and started with +1 off the bright sand using spot metering and then tweaked to taste. IMO, with this kind of shot, it is more important to get the bright sand looking the way you want it than to worry about the silhouette which you can always darken in post-processing if it is showing a little more detail than you would like. I prefer the silhouette to be pure black.
As a fan of silhouettes this one works for me, leg reflections and all! Just the correct WB "temperature" for my taste and a neat striding pose (I especially dig the bit of wet sand compression under the rear foot).