I think that's Santee State Park you're thinking about Rick. Not too far from Holly Hill.......exit 98 on I-95 I think. I haven't been that way in a while......but I am going to make a run up to the U-Pull in HH soon. At least it used to be a U-Pull.......been a while there too.
I'll scope it out when I go up. I know Eutawville is only a few miles from HH and Santee is just up on I-95 from there.
Wife and I went up to Santee a few years ago.......rented a boat and spent part of the day fishing in Lake Marion. Had a good time. Didn't catch any fish.......but it was fun.

Bob