I guess the coastguard just writes off the cost if one goes into the sea. It'll probably work out cheaper than running a Jetski anyway - especially if they're running a rotax 125cc 2 stroke motor like most of them do, these need rebuilding every 25 hours & cost almost as much as a new P3A when being rebuilt... and that's not even factoring in the cost of fuel.OK. That is interesting. DJI does not recommend to use it above water. How does it fly?