Shark Bay is the name given to the two prongs of land and their corresponding lagoons situated west of Overlander Roadhouse on Highway 1. Denham, the only settlement, is on the western side of the eastern Peron Peninsula, while at Monkey Mia on the sheltered eastern side, bottlenose dolphins have been coming in to the beach almost daily since the 1960s. Shark Bay was World Heritage listed in 1991; this remarkable place qualifies for listing under no less than four of UNESCO’s “natural” criteria. Note that fresh water is very precious in the Shark Bay area: salty bore water is used as much as possible.