Well, yes and no. It depends somewhat on what you volunteer for. Jobs like set up, pack down, road marshalling, merchandise crew and campground educators require either long stretches of hard physical work, walking long distances, being on your feet for several hours… or a combination of all three. However, jobs like ticketing are a little easier physically. Just consider whether you're more suited to hard labour or something less intensive and go from there. And be aware your preferred volunteer position may not be available. It's first in, first served so you have to be quick.