Definitely bring crab pots (presuming it's open... I haven't been over there for a few years). You can get some dungies and lots of red rocks in Sequim Bay, or run around the spit to Dungeness Bay and do much better there for dungeness. A few miles further toward PA and you're into humpies.

We were using rings so we focused on 20' depths for crabs, but we saw lots of pots deeper.

Good luck!