Commuter ferries are extremely popular in a many cities, including San Francisco, New York, Seattle, Vancouver, Hong Kong and many others. Their popularity stems from their simplicity and affordability. Ferries reduce gas, parking and toll costs, while providing a generally pleasant experience. Ferries often have cafes or newsstands on board, to improve the quality of the trip while increasing revenue. High speed ferries are becoming more readily available, addressing the biggest criticism of ferries: longer travel times. At the same time conflicts with endangered species inhabiting our waterways such as manatees must be balanced against where and how ferry systems can be executed. Cities along waterways may consider implementing ferries, potentially increasing tourism, while reducing the number of vehicles on the road.