Shallowest area of West Alton sandbar?

[Dave R]

It's been a few years since I anchored there. My recollection is that it's deeper in most places than the Braun Bay sandbar. Next week sometime, I plan to anchor at West Alton with a 9 year old aboard. Where is a good spot to drop anchors that's less than 4 feet deep but also where I won't break any laws? I'll get there early enough to have my choice of spots.