One of the more expansive CCC-built state parks, Poinsett State Park (6660 Poinsett Park Rd., 803/494-8177, www.southcarolinaparks.com , daily 9 a.m.–9 p.m., free) is known for its particular appeal to hikers. The extensive system of in-park foot, bike, and horse trails link up with the Palmetto Trail (www.palmettoconservation.org ), which goes on into the adjacent Manchester State Forest.
Because of its key location where the Midlands  sandhills meet the Coastal Plain, the topography is unusually interesting for this usually-flat area. Wildflower displays in May are particularly nice. The 10-acre lake has a coquina bathhouse from the 1930s, and you can rent a boat to do some angling yourself.
There are 24 campsites with water and electricity ($12), and 26 designated tent sites with just water ($9). For a decidedly more plush stay, there are five fully furnished cabins ($45–100) complete with fireplaces.