Everest is not the highest mountain

It is astonishing to hear that the Himalayas are not the highest mountains of the world. Yes, there are higher mountains than the Himalayas. The highest peak of the Maunak mountain of Hawaii is the island of Hawaii. It is 33476 feet from its foot to the top, which is about 4 thousand feet more than the Himalayas. But it's under the sea. So the Himalayas rise from the plane.