Pick any local lake or river and throw out a crawdad trap. Most places will have them as mentioned above. I don't know that I would eat them out of Lake WA, the Slough, or Lake Samm, but they do have some biggies.

Head out to a decent bass\trout lake, drop a drop with your favorite bait, and fish. Chances are you'll have fish and 'lobster' for dinner...