A solstice occurs when the sun appears to reach its most northerly or southerly excursion relative to the equator. Solstices occur twice a year - once in June and once in December. For the southern hemisphere, the summer solstice, indicating the longest number of daylight hours, is on or near to December 21. The Australian Standing Stones Management Board will host the annual passing of the solar noon shadow across the marker plaque on this day. This is a free public event.