In short, Kangaroo Island is huge! It measures 152km long and takes 2 hours to drive from one end to the other. Over all that land, there is so much to see and there is no way to pack the best of that into 1 day. At minimum, if you are strapped for time, 2 days is needed to see Kangaroo Island and the best it has to offer. Want to ensure you see all the highlights without any stress? Join a fully guided, all-inclusive tour with Discover Adelaide. You will get to see all the h