When my husband lived in south Georgia, he attended many a Low Country boil. Potatoes, corn, sausage, and shrimp are all cooked together in one pot, then drained and dumped out onto a table where you basically help yourself to what you want.
But here in the Gulf Coast states, crawfish are added to the pot. When I was a kid, I used to catch little crawdads in our creek, but never tried to eat one. The crawfish we used were fresh from Louisiana, shipped via FedEx to our door.