The electric bikes make taking a three hour tour effortlessly. You will ease up the hills of Seattle while smiling. After the tour you will have seen many unique sites, expanded your knowledge of the waterways, the animals of the Sound and the neighborhoods, and you will have had an enjoyable and memorable experience that's truly all about Seattle. The electric bikes allow for close up viewing of the gardens, boat docks and other sites. Your guide is a local. I grew up in Seattle, taught in Seattle schools, I care about the city and the natural settings and continue to build my knowledge of Seattle. The helmets have an intercom system that helps us communicate while riding the bikes. Your safety is a priority, we stick mainly to bike paths and lightly traveled roads. Please check out the reviews on my website. Must be 16 to take the tour. The bikes are only designed for adults. I charge per bike. I do not charge for children riding on the back of the cargo bike.