Best case scenario is to have a buddy to walk with. Motivate each other-- have fun-- be well!

From personal experience, from a person who also enjoys hiking-- if you have a safe place to walk, then just walk. You don't need equipment to do what you want to do-- just walk. Start with shorter distances and gradually increase speed and distance over time. As a human, you are literally configured to be a walking machine-- go with it. If you are bored walking, try listening to a podcast or your favorite music while you do it. As long as you have a place to walk, don't ever believe anyone who tells you that exercise machines are required to be fit. PS: I owned a gym for more than 10 years, and made a good living selling access to machines-- I didn't use machines then, either.