Gành Đá Đĩa or Ghềnh Đá Đĩa is a seashore area of uniformly interlocking basalt rock columns located along the coast in An Ninh Đông, Tuy An District, Phú Yên Province, Vietnam. The site features approximately 35,000 dark lava columns with roughly flat surfaces in various polygonal shapes, resembling a gigantic beehive or a stack of dinner plates, which inspired its name. The formation spans about 100 meters in width and 250 meters in length. Recognized for its unique geological and scenic value, Gành Đá Đĩa was designated a National Scenic Site in 1997 and elevated to a National Special Relic in 2020.