Hidden in the dense greenery of southern Tongatapu, a limestone monolith named Maka Lahi—meaning “Big Rock” in Tongan—has ...

In order to move the “exceptional” and massive rock, the tsunami was likely around 164-feet tall — the height of the Arc de Triomphe.

“It’s the unknown,” says Erich Hoyt, author of Creatures of the Deep: In Search of the Sea’s Monsters and the World They Live In. “You look out on the ocean and you might see a dolphin ...