Take SR-31 (Carolina Bays Pkwy) NORTH to SR-22 to NORTH MYRTLE BEACH and CONWAY. You want SR-22 NORTH to CONWAY.
Take SR-22 (Conway Bypass) around Conway to U.S. 501 NORTH to AYNOR and MARION.
Take U.S. 501 NORTH to I-95 via SR-38. At JCT I-95, stay right and turn right onto the entrance ramp onto I-95 NORTH.
Take I-95 NORTH to Doswell. In Virginia, you will bypass Richmond by taking I-295 NORTH. (Exit at EXIT 46 off I-95 onto I-295 NORTH, then take I-295 NORTH back up to I-95 NORTH at EXIT 43A.) The exit for Doswell is EXIT 98 (SR-30 - King's Dominion Rd).