Looks like he has caught something below. Was it a good catch? I think so. It's a black marlin! Black marlins are dubbed to be " the premier game fish for sports fisherman". Getting a good catch can be best captured with Splash Drone 3. The drone will float on water and does not submerge on its own, so you just need to take control of it. The waterproof cameras for both Auto and Fisherman editions are found on the drone's belly- thus it makes you see underwater as if you are using a snorkeler. Here's a video
Splash drone 3 available in the USA at UrbanDrones.com. It shipped from the US, so place your order now by calling 954-213-4977 . They also can provide spareparts and are available online.