In case you were wondering how much sand a baby will eat before deciding it's not edible.. I don't have an answer for you. We never got to that point with E! Eventually we were able to distract him with pickles and oranges, but I swear that kid would have sat in the sand eating fistful after fistful.
I'm not sure where he'd rate the sand on the list of things he tried while in Florida, but I think I'd put Florida farmer's markets at the top. We spent one afternoon eating our way through one, and I think I'd gladly go every day if I could.