Grassy Lake   Be the first to submit input for Grassy Lake. If you have info on Grassy Lake, Horry County, South Carolina please submit it here to improve this web site.          These outdoors activities are available near Grassy Lake.   Public Lands Near Grassy Lake: Little Pee Dee State Park, South Carolina, 11 miles away Myrtle Beach State Park, South Carolina, 35 miles away Huntington Beach State Park, South Carolina, 39 miles away   Hotels Near Grassy Lake: Quality Inn Mullins, Mullins, 11 miles away The Grove-The Inn on Harlee, Marion, 15 miles away Sleep Inn Conway, Conway, 18 miles away Abingdon Manor - Country Inn &, Latta, 19 miles away Comfort Inn Dillon, Dillon, 20 miles away