The thing we have a lot of around the house are those little butter clams. And they are just inches down and easy to dig. Trouble is, we won't have time to dig them and also let them clean out. They're full of sand, until you let them sit in a clean bucket of water for a day or so, changing the water with fresh sea water every couple hours. They're high maintenance.
Yep...now that's a bummer. But didn't you say you could purchase them?
I don't know how to cook them...steam them, I guess?
Gosh, now I'm starving!! LOL