Just think of the Instagrams.
David Lang and Eric Stackpole were trying to find a remotely operated vehicle to help them locate gold in a cave in California, but all of the options they came across were out of their budget. So they decided to make their own.
That endeavor turned into OpenROV, a business focused on small underwater drones designed for exploration.
The Trident Underwater Drone is equipped with a high-definition camera and a radio buoy (making it easier for the device to move around without getting completely lost at sea), and has four hours of battery life and a range of 100 meters.
There are two versions of the robot: a DIY version you can build yourself, or a pre-made device that's ready to hit the water right out of the box.
But this toy doesn't come cheap: You can pre-order the OpenROV for $1,199.