There really isn't much reason to visit Vina Del Mar Island if you don't live there. It's entirely taken up by residential streets, with no beaches and not even the tiniest of parks or lookout points. You can get an amazing view of the Bayway if you trespass in somebody's back yard but I can't advise that.
Vina Del Mar is in close proximity to two of my favorite areas on the Gulf Coast, though - Pass-A-Grille and Don CeSar. Which would make VDM a splendid place to call home, if I truly called anyplace home and I don't.