Underwater, many of these columns have merged to form immense arches and corridors and even ten - mile - long [20 - kilometer - long] walls that broach the surface as reef platforms.
Dziļumā daudzas kolonnas ir saplūdušas kopā, veidojot gigantiskas arkas un koridorus un pat 20 kilometru garas sienas, kuru augšdaļa paceļas virs ūdens.