From windswept headlands and large granite outcrops to sheltered bays and beaches, William Bay National Park has something for everyone.

Famous for its turquoise green waters edged by huge granite boulders, Greens Pool is the centrepiece of William Bay National Park. It is a perfect place for swimming, snorkelling, relaxing or exploring the granite rocks.

William Bay National Park is very popular in peak periods such as school and public holidays and there are limited parking spaces. Visiting the park outside of these times may provide you with a more enjoyable experience. Camping is not permitted in William Bay National Park. 

Wildlife wonderland

Sheltered pools, channels, granite terraces, off shore islands, rock pools, and wild, windswept beaches provide many different habitats for marine life and birds. Shorebirds nest on the beaches, colourful fish inhabit the rock pools and whales and dolphins pass by further out to sea.


A characteristic feature of the national parks on the south coast such as William Bay is that wildflowers may be found at any time of the year. There is a peak of flowering in spring but even in the hottest weather, flowers can be found, especially in the concealed habitats under the karri tees or under the dense coastal shrubs. Keep a lookout for the many species of orchids that grow in the park.

Caring for our wildlife

Hooded Plovers and other shorebirds are sometimes seen on the beaches of William Bay National Park. Sit quietly and watch how each of the birds move and feed – they are all so very different. The presence of dogs on beaches deters birds from nesting. Help to ensure that shorebirds feel safe to nest by leaving your dogs at home.

Getting there

William Bay National Park is accessible via the South Coast Highway between Denmark and Walpole.

Bush Walking

There is a short walk trail between Greens Pool and Elephant Rocks.

For those who want a longer walk, why not walk past Greens Pool to Mazzoletti Beach? This wild and windswept beach stretches from the rocks west of Greens Pool in a graceful curve to Parry’s Beach.

The Bibbulmun Track passes through William Bay National Park.

We recognise and acknowledge Aboriginal people as the traditional custodians of William Bay National Park.


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