Not even an underwater drone. A small solar powered drone that stays on the surface could feasibly have a satellite connection to the internet for controlling it. Anything small won't be seen in the ocean anyway or will be disregarded as drifting rubbish.
Not even an underwater drone. A small solar powered drone that stays on the surface could feasibly have a satellite connection to the internet for controlling it. Anything small won't be seen in the ocean anyway or will be disregarded as drifting rubbish.