This hole in the rock can be found at La'ie Point on the island of Oahu. It was created on April 1, 1946, when a tsunami blasted a hole in the middle of the large sandstone rock. There appears to be plaque on the rock on the beach. It is probably a memorial for the destruction caused by the tsunami referred as 1946 Aleutian Tsunami. I am however tempted to call this rock - 'Giant Plug' for the 'Giant Hole.'