Any body of water near the bay (like colt state park) if you lift up a rock you may be able to see a ton of Asian rock crabs. They’re an invasive species and overpopulated. We like to use them for fishing bait.

Other than that, you can also bring a crab trap and put raw chicken in it. You’d be able to find some blue crabs and lady crabs - maybe even some spider crabs try to eat it.