South Dandalup Dam

The largest of all dams supplying Perth, South Dandalup Dam is a popular destination all year for its tall trees, rich birdlife, and close proximity to the historic timber town of Dwellingup.


Please note: picnic and recreational areas at Western Australian dams managed by Water Corporation will be closed from Monday, 30 March 2020, in line with advice to cease non-essential travel. For more information visit our latest updates page.


Dam information

Thumbnail of South Dandalup Dam map

South Dandalup Dam map - click image to expand

  • Capacity – 138.01 million kilolitres  
  • Catchment area – 311 square kilometres
  • Reservoir length – 22 kilometres
  • Height of wall (above lowest foundation) – 43 metres 

What to do?

There is nothing like a country picnic amongst WA’s jarrah trees. Have lunch, use the free gas barbecues, and set up at a table in the picnic area located at the top of the dam wall.

Enjoy the spectacular view of the dam at the lookout. 

For bird lovers, there is an abundance of native species to find, including robins, finches and blue wrens. You might also catch a glimpse of a kangaroo or wallaby.

Take gorgeous photos of the colourful flowers during wildflower season from July to November. 

Why not visit Dwellingup while you’re here? Only 8km away, it offers charming craft shops and a Forest Heritage Centre for you to browse.  

Visitor information 

South Dandalup Dam is normally open every day of the week until 6pm (closes at 5pm from May to September), however please see note above.

For more information contact the Shire of Murray


  • Picnic areas with free gas barbecues and picnic tables
  • Toilets (includes disabled)
  • On-site parking 


  • From Perth, take Kwinana Freeway, or Tonkin or Albany Highway to Armadale
  • Follow South Western Highway to North Dandalup township 
  • Turn left at Del Park Road and follow for 18km

Protecting the dams for future generations 

Enjoy visiting South Dandalup Dam and its surrounding water catchment area and please stay safe.

Some activities are not allowed. These include: 

  • swimming 
  • camping 
  • fishing
  • hunting 
  • boating.

Please leave dogs and other pets at home. 

Comply with all signs and keep to the designated recreation areas, pathways and roads. Additionally, always observe the 2km exclusion zine upstream of the dam wall - this helps protect the water source from contamination. 

Please report all safety hazards, suspicious behaviour or pollution by calling 13 13 75. 

Please do not: 

  • disturb the wildlife 
  • climb on the pipework or other operational infrastructure 
  • climb walls, fences or bridges 
  • deface safety and security signs 
  • trespass into signposted operational and no entry areas 
  • attempt to operate taps, valves or controls
  • block emergency and operational access gates and roadways with vehicles.


To contact our South Dandalup operations building please call (08) 9495 8822.

Can I fly my drone at the dam?

Important information about drone usage
Unless authorised, the use of drones or unmanned aerial vehicles is strictly prohibited.