"With its spherical, freely rotating protective cage, the drone
remains perfectly stable after contacts, making it completely
collision-tolerant and safe to fly close to humans. It was thus capable
to easily access this extreme environment while being remotely operated
by an untrained pilot. The embedded full HD camera, digital live video
transmission and the powerful lighting system allowed the drone to
operate in the heart of the mountain glacier, tens of meters below the
pretty cool. I would think some kind of climbing contraption might be better though?