Area. It includes details of living stromatolites, quaternary coastal geology and evidence of past mega-tsunamis. It also covers the cultural heritage of the area, including Aboriginal history and details of the wreck of the Zuytdorp in 1712. Geology of Rottnest Playford had a long history working on Rottnest Island, off the coast of Perth. He found the freshwater on the island which, until that time was being delivered from the mainland, and named many landmarks on the Island including Wadjemup Hill (aboriginal name for the hill) Pearse Lakes (after an island superintendent), Lake Vincent (after Henry Vincent, another superintendent of the island), Fairbridge Bluff in Salmon Bay (after his UWA lecturer and mentor Rhodes Fairbridge). Playford wrote about the Island's geology, illustrating dramatic changes in sea level (up to 2.5m) over the last 6000 years. In addition, he also located fossil coral reefs 120,000 years old 3m above sea level, which indicate the ocean was warmer than today. Maritime History At Tamala Station in 1954 an elderly stockman Tom Pepper told Playford how he had found the remains of an old sailing ship and showed him coins and other objects he had picked up at the wreck site. Playford set off alone one weekend in a vehicle to bush bash and locate the site 40 miles from his geological camp based on verbal direction from Tom Pepper. The coins were dated 1711 and provided the vital clue for Playford to finally identify the wreck as being the Dutch ship Zuytdorp. Both Tom Pepper and Phillip Playford were named joint discoverers of the wreck in 1994 by the Western Australian Government. The Zuytdorp Cliffs are a defining feature of the Western Australian coastline and the name was proposed by Playford arising from the discovery of the name of this major wreck site. Playford wrote a book on the Zuytdorp entitled ‘Carpet of Silver; the wreck of the Zuytdorp. This book was published in 1996 by UWA Press. and won a Western Australian Premier's Book Awards in 1997 and was reprinted in 1998 and 2006. He also wrote "Voyage of Discovery To Terra Australia by Willem de Vlamingh in 1696–97" (published by the WA Museum in 1998 and reprinted in 1999) and "The Life and Times of Dirk Hartog" with co-authors Robert Cribb, Greetje Bouma and Cor Boer. Aboriginal art and culture While working on the Devonian limestones Playford spent a lot