Amazon.com : Chasing GM0001 Gladius Mini Underwater Drone (ROV) with 4K UHD Camera (100M Tether) : Electronics
Amazon.com : gladius Mini Underwater Drone, 4K UHD Underwater Camera for Real Time Viewing, Remote Controller and APP Remote Control, Dive to 330ft, Live Stream, Adjustable Tilt-Lock, Fish Finder, ROV : Electronics
TJ-FlyingFish drone flies through the air and "swims" underwater
The UNDERWATER drone: $765 gadget can submerge , float like a boat and fly through the air at 40mph | Daily Mail Online
Underwater Drones are excellent tools & lots of fun
Underwater Science Drones Can't Help Sparking International Incidents | WIRED
Underwater drone technology can enhance port maintenance | HERE