The waves of the sea create uncertainties whether your drone lands upside down or not, but with Spry Drone, this should not be an issue. You can flip the flight mode switch to put in on manual mode and it will just go underwater, flip and float back with the motors facing up. Easy peasy. As of the moment, Spry may have no payload release yet, but there are a lot of possibilities in the future. It got an expansion port at the bottom for future accessories which could be a small bait release that can lift up to 340 grams. Spry- 100% waterproof with equally 100% waterproof remote control. Spry available in the USA at UrbanDrones.com. It shipped from the US, so place your order now by calling 954-213- 4977.