Prince Khalid bin Bandar bin Abdulaziz, Governor of Riyadh region and Chairman of Tourism Development Council in the region, and Prince Sultan bin Salman bin Abdulaziz, President of Saudi Commission for Tourism and Antiquities (SCTA), will patronize in Diriyah on Sunday evening, the ceremony of launching Saudi Arabia's Summer Events for the year 1434 AH. On the sidelines of the ceremony, an exhibition will be held including 40 pavilions for festivals, events and domestic tourist trips, and will distribute publications on tourism activities in the Kingdom's regions.