Here is a remote controlled vehicle that you can use in any body of water to record 4K UHD video. The QinLL Aquatic Drone comes with a 220-degree rotating camera, so you can get a view of above or below the surface. It has a remote control range of up to 0.5 mile.
This aquatic robot lasts up to 2 hours on battery. It has convenient features such as self-righting and return home function.[where to get it]