The best of shrimp and lobster may be equal to or better than crab, but not by much. By crab, I am referring to the swimming crab or blue crab that is typical of the Chesapeake Bay, the southeastern coasts of the U.S. and the Gulf of Mexico.
Swimming crabs are quick and aggressive.
They are good to eat but they are a genuine riot to catch. Swimming crabs are common to abundant in the esteros of Sonora. There are several species. The largest is easily equivalent in size and flavor to the best of the Chesapeake Bay Crabs. The smaller variety is more common in the estuaries, will probably be the major part of your catch during your family adventure, and has an excellent flavor, but you will need to work to get at the meat.