The world’s largest coral – measuring 34 meters wide, 32 meters long and 5.5 meters high – was accidentally discovered by a diver cameraman, part of a National Geographic expedition, in the southwest Pacific Ocean.

Coral discovered in the Solomon Islands could be over 300 years old. In fact, “it is bigger than a blue whale”, says the team.

This coral is so big, it is visible even from space.

View this post on Instagram

A post shared by National Geographic (@natgeo)

It is essentially a mega-coral, which is a collection of many connected, tiny creatures that together form an organism – not a reef.

“I went diving in a place where the map said there was a wreck and then I saw something,” said Manu San Felix.

Seeing the coral was like seeing an “underwater cathedral,” an emotional cameraman told the BBC.

“It’s very emotional. I felt this immense respect for something that stayed in one place and survived for hundreds of years. “I thought, ‘Wow, this was here when Napoleon was alive,'” he said.