|William Bay National Park|
|Nearest town or city||Denmark|
|Area||17.34 km2 (6.7 sq mi)|
|Managing authorities||Department of Parks and Wildlife|
|Website||William Bay National Park|
|See also||List of protected areas of|
Situated approximately 15 km (9 mi) west of Denmark, William Bay National Park covers 1,734 ha (4,280 acres) and includes Greens Pool and Elephant Rocks. The granite boulders create a natural reef which protects Greens Pool from the Great Southern Ocean, and a safe swimming beach for children who are under supervision. William Bay National Park is located along the south coast of Western Australia along the Rainbow Coast, and is in the Shire of Denmark. The park also contains areas of peppermint scrub, dense heathland, pockets of karri forest, Eucalyptus woodlands, Parry Inlet, lakes, tall hills with granite tors and outcrops.
Coastal areas at the eastern side of the park include Greens Pool, Elephant Rocks, Madfish Bay and Madfish Island, Waterfall Beach. The wilder and less dramatic features along the coast of the western side include Parry Beach, Parry Inlet, Mazoletti Beach and Hillier Bay.
Fishing is popular along the rocks and beaches, with many different species found, including King George whiting, herring, Australian salmon and mulloway. Bushwalking is another popular activity to enjoy the views with numerous tracks around the park.
The traditional owners of the area are the Mineng people; Aboriginal Australians have inhabited the area for between 40,000 and 50,000 years. Artefacts including pieces of stone tools have been found in the park at Lights Beach, Lake Byleveld and Parry Inlet.
William Bay was named after the famed British Arctic explorer and navigator, Sir William Edward Parry, as were two other nearby features, Parry Inlet and Edward Point. The bay was named in the 1830s by John Septimus Roe.
The area was declared as a national park in 1971 with an area of 4,644 acres (1,879 ha).
A small reserve with an area of 29.5 ha (73 acres) located near the north east end of the park that encompasses Lake Bylveld was added to the park in the 1980s.
The park is a popular tourist destination, with 137,000 visitors in 2006–2007, 208,000 in 2010-2011 and 238,000 visitors in 2014–2015.
Birds found within the park area and surrounds include several species of honeyeaters, white-breasted robins, red-eared fire tails, western rosella and red-capped parrot. Migratory waterbirds that visit the park include the threatened species; Australasian bittern, hooded plover and little bittern.
- "Department of Environment and Conservation 2009–2010 Annual Report". Annual Report. Department of Environment and Conservation: 48. 2010. ISSN 1835-114X. Archived from the original on 11 January 2011.
- Marchant, N. G. (2000) Karri forest in microcosm : William Bay National Park. Landscope (Como, W.A), Spring 2000, p. 42-47
- "William Bay". Australian Explorer. 2000. Retrieved 6 December 2018.
- "William Bay National Park Denmark, Western Australia". Western Australia Travellers Guide. 2012. Retrieved 6 December 2018.
- Peter Keelan (2015). "Part 1 : William Bay" (PDF). Peter Keelan. Retrieved 5 December 2018.
- "National Parks Board of Western Australia Annual Report 1971-1972" (PDF). Government of Western Australia. 1972. Retrieved 6 December 2018.
- Peter Keelan (2015). "Part 2 : William Bay National Park" (PDF). Peter Keelan. Retrieved 6 December 2018.
- "Visitor Statistics-William Bay National Park". Peter Keelan. 2015. Retrieved 6 December 2018.
- "Coastal Reserves Management Strategy and Action Plan" (PDF). Land Insights Report. Shire of Denmark. 2010. Retrieved 6 December 2018.
- "Verve Energy Media release - Exciting fin of rare assassins spider found on WA South Coast" (PDF). 2008. Archived from the original (PDF) on 20 February 2011. Retrieved 12 November 2010.