There are several well liked camp grounds along the BUS US17 S. Kings Highway strip along the beach of Myrtle Beach.
One just south of the Myrtle Beach State Park is a place called PIRATE LAND CAMPGROUND which is really geared towards the kids..
We usually stay at the next campground south called LAKEWOOD RESORT mainly because my sister is staying there in permanent housing.
About the only thing I didn't like about the Myrtle Beach State park and the next SPRINGMAID Hotel is these are in the final approach for the Myrtle beach Airport which is just across the road from BUS US17. You can actually see the pilots inside the aircraft when it is landing. Most of the the time they make this a landing event for noise abatement but sometimes I guess they are forced to take OFF in the direction of the Ocean which is very loud when that occurs.
Pirate Land and Lakewood are far enough south to get away from the real loud noise with aircraft.
The next campground south of LAKEWOOD is OCEAN LAKES FAMILY CAMPGROUND which is another well known facility with kids in mind...
On down the SOUTH US17 road just a few miles is another State Park called HUNTINGTON BEACH STATE PARK at Murrells Inlet which is one I really want to stay at on one my future visits down that way. It also has BEACHFRONT CAMPING or back in the woods off to yourself somewhat. This is a hugh piece of land.
We have camped alot in both areas of NC OUTER BANKS and Myrtle Beach and it really depends of what you want to do. NC outer bank is more beach type atmosphere where Myrtle Beach has both beaches and a really nice town with all of its amenities.
Hard to say which place is better... I suspect the kids will fall in love with Myrtle beach.
Roy Ken