How far north are you staying? Having a cart is the way to go if you don,t mind the little extra expense. With a cart you can go anywhere you want,anytime you want. It allows you to explore the entire Island and soak it all up. We had a lot of fun offering locals a ride who were walking in our direction outside of town. You get lots of info from them and they really appreciate the lift on a hot day. The local kids love to hop on the back for even a few block ride. If you get one,make sure it's gas,not electric. They are much better and a full tank goes a long way.