Boaty McBoatface is part of a fleet of six 'over the horizon' autonomous underwater vehicles of the Autosub Long Range class. Launched in 2017, the ALRs are designed, owned and operated by the National Oceanography Centre in the UK. From Wikipedia
The intact camera, found by an unmanned submersible, is now displayed at the Loch Ness Centre, renewing interest in the legend and history of Nessie-hunting efforts.