Why not just ride bicycles powered by pedals and sprockets?
Simple and fool-proof technology that has worked for over a century,plus peddling one around is good for your health.
Assuming of course that you are an adult bicycle geek.
I see people peddling those things hundreds of miles. Some even have small trailers they pull behind them,and I am assuming that is where the small tent and the cooking gear is stored. I see them all the time with flashing lights on the rear that are powered by the pedals,and usually with flags flying high to attract attention from motor vehicle operators.
Not for me at my age,but I can see how it would attract younger and healthier people.