Sand Dunes Bluff is a cliff located in San Luis Obispo County, California. It appears on the Morro Bay South OE W USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 79.29 feet (24.17 m) above sea level. The nearest populated place is Cuesta-by-the-Sea, approximately 3.2 miles to the NE.