Using a Drone-Mounted Camera to See what a Surfer Sees "In the Water"

If you've ever seen a picture of a surfer (the ocean kind), shot from shore, you have one view of what's going on, but you can't see what the surfer sees while on the wave. 

Sometimes you see a head-mounted camera shot, and that gives you a different sense of what the rider is experiencing. 

But here's something I have never seen before, namely a video camera apparently mounted on some sort of drone, that is shooting from above the rider and along the ride itself. 

As somebody who used to spend lots of time in the water, this is closer to what the rider sees: how you know the wave is moving over shallower water and is going to wall up, or moving over deeper water, and about to reform. 

In the former case, you need to drive faster to make the section, or you'll be in the soup (the white water).  In the latter case, you need to cut back, to ride the most-powerful part of the wave (the curl). 

It's fun. A great way to waste about three minutes.