Took the Mini 3 boating for the first time this weekend. I'm more than impressed with this little drone. Powerful, fast, long battery life, reliable. I personally think DJI hit it out of the park with this one. Makes the first Mini look like a cheap toy.
It was a blast. My only recommendation for flying the Mini 3 from a boat is practice grabbing it out of the air and turning it upside down to stop the motors. I had to do this every time I was done flying because landing normally wasn't an option on a drifting boat that was full of people. I just put the drone in front of the boat at about a foot over my head and then when the boat drifted by I just snatched it from the air with my hand.