Develop a nautical challenge focused on innovation and sustainability. Participants should explore new technologies, innovative materials, and alternative propulsion systems that reduce environmental impact while maintaining nautical performance. This may involve utilizing solar energy, hydrogen, electricity, and other renewable energy sources to power boats. The challenge should encourage creative solutions that prioritize sustainability without compromising performance, and participants should be able to showcase their ideas through practical and feasible designs or prototypes. The challenge should also emphasize the potential positive impact of these innovations on the marine industry and the environment.