Imagine dropping a camera down a volcano, only to find stuff living in it. Like sharks! In a new video from National Geographic, an expedition team found sharks in Kavachi, an active submarine volcano.

Kavachi is located off the remote Solomon Islands, northeast of Australia. Researchers discovered a lot of things after dropping a deep-sea camera into one of its craters. Like sharks:

Hammerhead ones:

Stingrays:

Watch the footage below: