Rank #57
Use a solar-powered boat.
This description is for a solar-powered boat. This boat is powered by the sun's energy, making it a great choice for those looking for an eco-friendly and cost-effective way to travel. It is equipped with solar panels that capture the sun's energy and convert it into electricity
From Wikipedia
An electric boat is a watercraft driven by electric motors that are powered by on-board battery packs or solar panels.