JANUARY SPECIAL! Marina Inn 7-403 Weekend Getaway Special: Stay 2 nights, get the 3rd night FREE! Come stay at The Marina Inn at Grande Dunes and enjoy the luxuries of this premier resort in Myrtle Beach. Located right on the 17 Bypass across the street from Pirates' Voyage and the Carolina Opry, you are close to many of the many attractions in the area. With awesome views of the Intracoastal Waterway and the Grande Dunes Golf Course, you will never want to leave!