This State Park has a lot to offer from plenty of campsites with all of the traditional amenities(water, electric hookups), decent (OK, not great) restroom facilities and excellent grounds running adjacent to Lake Marion that offers sweeping views of this incredibly beautiful, massive lake. 

There's EZ access to the lake with a great boat launching area. The only downside is the foliage isn't terribly dense at the campground, so you'll basically be seeing all of your neighbors (and I mean all of them - from the far side to the near front) for as far as the eye can see, so if the lack of privacy and seclusion doesn't bother you, then you should be alright. 

Insider's Tip?  If I was to book a campsite here at Santee SP, it would be this one -#100 (nice and private, further away from the other campsites) with direct lake access, plus, it's got some really great trees and shrubs all the way around it.

Lots to explore, see and do here at Santee State Park. Happy Camping!