Since there is only a pedestrian/motorcycle ferry to the island, you will find only a very few working pick-up trucks. Most transport is by moto or on foot.
You can also rent a scooter in Krabi, then drive to either ferry pier, take the ferry across, and drive to your resort. This is a great way to save on money, as the scooter tariff rate is very low and they don't consume much gas.
