The Surfing Crab is on Rt 1 (the main road) a couple of miles north of Five Points (where Rt 9 and Rt 1 cross). It's north of all the congestion, where you feel like you are leaving the commercial areas. It's a blue building on the east side of the highway.
My Sussex County relatives suggested we meet there tonight. They got there early to order all-you-can-eat crabs with unlimited sides for $30 each. They said the potato salad and corn were good. I just ordered a 1/2 dozen medium crabs for $20.
The all-you-can-eat is a good deal.The servers were easy-going and quick to bring more crabs and beer (just basic national on-tap choices and bottles). The crabs were heavy and had all the claws. The screened porch and picnic table setup was good; you share tables with others, and the servers are there often to empty the bowls of crab shells and check on you.
While I was there, I saw a local Sussex County State Delegate and his wife order a dozen Jumbo crabs, and several other folks came up and spoke to them. It looks like this is becoming a place that is popular with local folks, even though they know the crabs may not be local.