The Double Ninth Festival falls on the ninth day of the ninth month of the lunar calendar. The Double Ninth Festival coincides with each other, so it is called Double Ninth Festival. Folks have the custom of climbing on this day, so the Double Ninth Festival is also called the Climbing Festival.Sanqian Pictures shares with you a set of Double Ninth Festival mobile wallpaper pictures, I hope you all like them.For more holiday mobile wallpapers, please continue to follow Sanqian Pictures.