What a great dad and son trip! So great to see a kids face light up with a sand shark! My suggestion would be to find as deep of a spot to a shore access point. The area I fish in the west is mostly long gradually sloping (As is most of the sound). I am sure sand sharks move in close to shore. Maybe further out east is better but I'm not familiar. You never know what you will land, even if its not your targeted species. Most of all, enjoy the time with your son, post pics of all the fish you'll catch!

Good luck in your venture and happy birthday to your little guy!

Tight lines

CD