Visiting I Want a place that has blue crabs Big ones?
LA fishermen harvest more than enough blue crabs for Maryland and everyone else in the country. You can get boiled crabs all over town; call first to ensure crabs are available. They're boiled live, and the supply changes with the weather. Here's a list of boiled seafood centric places, all over town:
Sal's Seafood in Marrero; Perino's Boiling Pot in Harvey (both on the Westbank). Cast Net out in NO East. Salvo's in Belle Chasse. Zimmer's Seafood, 4900 block of St. Anthony ave in Gentilly....Bayou Brothers Seafood on Judge Perez in Chalmette; Harbor Seafood in Kenner, and Kenner Seafood. KJean seafood on Carrollton, Seither's Seafood in Harahan.
A little bit of googling will unearth hours and contact info for all these spots. Crab supply tightens as the weather cools, and thus crabs get more expensive.
If you want to "eat in", check with The Galley on Metairie Road
If you want to "take out" Hazelhurst has already suggested Big Fisherman (if they have re-opened) and I also like
Schaeffer and Rusich in Bucktown.