South Carolina flying changes quickly between the coast, the Midlands. the Upstate. A short hop can take you from a 19-foot island airport at KHXD to the highest public-use field in the state at KGMU, elevation 1,048 feet. Summer heat, humidity. coastal ceilings deserve real planning here. The state has 67 public-use airports, including 9 towered fields and 58 non-towered fields. KGSP is the heavyweight, with an 11,001-foot runway, ILS, tower service. an FBO. KCHS and KCAE add long-runway IFR options with multiple FBOs. KMYR gives the Grand Strand a 9,503-foot towered runway near sea level. For training and proficiency, South Carolina is useful because the infrastructure is spread out. KGMU provides towered work in Greenville. KAND, KRBW. KSPA give pilots non-towered ILS options with runways over 5,800 feet. That mix supports pattern work, instrument approaches, fuel stops. coastal destination flying without leaving the state.