OpenROV is an open-source underwater robot and growing community of over 3,000 DIY ocean explorers that began in a garage. The community develops low-cost designs and new sensors to improve the robot and build a network of operators. It aims to democratize exploration by relying on community feedback to improve the crowdsourced design. Assembly takes a weekend and doesn't require expertise, just basic skills like soldering. Users can then explore oceans and share adventures with their OpenROV.