The Marum volcano is part of the Ambrym Island, Vanuato, a highly active volcanic region. The video shows George Kourounis climbing down the volcano crater towards the violently boiling lava to get as close as possible to the mouth of the volcano. In order to get this close he wore heat protection gear, without it it would have been impossible. The result of this insane feat is this epic volcano video.
Oh…and he took a selfie just for the record.