The park is made for people: the serpentine (except for the goat trails of the locals for a shortcut) is wide, the asphalt is smooth. There is parking on the observation decks, as well as cafes and souvenirs. You can walk around the entire territory, take the funicular up (sign up in advance: a certain number of people per day are allowed to enter the crater). But even without a funicular, you can walk through the lunar and Martian landscapes. I highly recommend you to visit
It's a very interesting place. Beautiful views, unique vegetation. It is mandatory to visit. An impressive starry sky. Be sure to take warm clothes and appropriate shoes.