Have you looked at Lake Matamuskeet? You can scare the kids with stories of GIANT crabs that eat children.
I have been missing my youngest son and dog for about 3 days, I was too scared to go back into the brush after them while crabbing. :p I am kidding.....my youngest son is 22 and don't think will be left behind, the dog however O.o lol. But yes Mattamuskeet is a good place too if you're just hanging out in Manteo and want a day trip there is't only about 1.25 hour drive. Get there early for crabbing, like 6amish. Seen a guy thou the other day pulling nice keepers from Far Creek canal wish is I suppose the boat ramp in Engelhard.