Just having returned-renting a golf cart is the best way! It's fun to explore and yes it is a great way to see the island. My husband and son explored all the way up to Belizian Shores, but had some parts where they were not sure they would get through. The ferry with golf cart last week was $10Belize for round trip. Even going to Sweet Basil can be a driving adventure - make sure you stay on the boards they have laid down or you are in the water. Actually, after the fact reading the rental agreement for the cart, it says you should not go past Sweet Basil and a $100 fine if you have to be towed out of the mud/water. However, my husband and 14 year old son had a wonderful time exploring north of Sweet Basil.