Cangai Bridge - Cangai: The road is only suitable for motor vehicles and 4 x 4 vehicles. Small campervans will probably negotiate the unsealed road OK but great care needs to be taken. Cangai Bridge - Cangai:  The road is only suitable for motor vehicles and 4 x 4 vehicles. Small campervans will probably negotiate the unsealed road OK but great care needs to be taken.