Mooring on Cape Cod?

[Initium]

I'm headed to Cape Cod (N. Truro) next week and am taking my newly acquired O'Day, Daysailor 1 (16').

Any advice on where I can moor it on the bay? Prices?
Launch sites other than Wellfleet? Maybe something free?

Any help on this is greatly appreciated. I'm trying to keep this as painless as possible so as to make it a good experience for the wife.

Thanks.
Ed