About this park
Windswept headlands, large granite outcrops, sheltered bays and beaches, William Bay National Park has something for everyone.
The turquoise green waters combined with the stunning coastline have got folks talking. Enjoy a swim or snorkel in a sheltered bay and explore huge granite rocks. You won’t be blamed for thinking you’re on safari as the rounded boulders resemble a herd of elephants at a watering hole!
During school holidays it’s best to arrive early. The park is popular and parking is limited.
Walking is a great way to experience the coastline and the famous Bibbulmun Track passes through the park. There’s so much to see and explore such as rock pools, channels, offshore islands and windswept beaches that attract marine life and shorebirds so be careful where you walk! If you’re lucky, you may spot passing dolphins or whales further out to sea.
Wildflowers are at their blooming best in spring, but flowers can be found in the park all year round. Lace up your hiking boots and start exploring!
William Bay National Park has picturesque, year-round appeal.
Safety information
Plan when to visit. Read this safety information about bushwalking, swimming, surfing, fishing, paddling, kayaking and diving. Consider travelling with a personal location beacon (PLB). In the event you need to be rescued it could save your life!
Gallery
![Greens Pool beach with white sand clear green water and people swimming and walking](/sites/default/files/styles/slide_large/public/2021-09/greens-pool-william-bay-national-park-tourism-wa-2.jpg?itok=2iwn2pbn)
![Greens Pool aerial view of clear green water surrounding large granite boulders](/sites/default/files/styles/slide_large/public/2021-09/greens-pool-william-bay-national-park-tourism-wa-1.jpg?itok=22xaFlDA)
![Greens Pool Sandy beach with blue water and large granite boulders](/sites/default/files/styles/slide_large/public/2021-09/greens-pool-william-bay-national-park-greg-snell.jpg?itok=ERwA5H4G)
![Greens Pool couple walking on beach next to green clear green water](/sites/default/files/styles/slide_large/public/2021-09/greens-pool-william-bay-national-park-tourism-wa-5.jpg?itok=89ttzf9f)
![Elephant Rocks aerial view of green water surrounding large granite boulders](/sites/default/files/styles/slide_large/public/2021-09/elephant-rocks-william-bay-national-park-tourism-wa-2.jpg?itok=CeRMzoVI)
![Greens Pool clear green water surround large granite boulders with people swimming and standing on rocks](/sites/default/files/styles/slide_large/public/2021-09/greens-pool-william-bay-national-park-tourism-wa-4.jpg?itok=qwy7Vkvj)
![Greens Pool at sunset beach at sunset sky and water are purple and pink](/sites/default/files/styles/slide_large/public/2021-09/greens-pool-william-bay-national-park-tourism-wa-3.jpg?itok=BXgjVRAg)
Activities
Bushwalking
Fishing
Four-wheel driving
Four-wheel driving is permitted within William Bay National Park only on Mazzoletti Beach, accessible via Parry Beach Caravan Park depending on the sandbar at Parry Inlet.
Overnight hiking
Scuba diving
Snorkelling
Snorkel around the boulders in the calm, clear waters of Greens Pool to observe Zebrafish, Stripeys, Banded sweep, Moonlighters, King George Whiting, Leatherjackets, Blackspot goatfish, stingrays, starfish, and many more.
Surfing
Swimming
The eastern end of Greens Pool near the access steps is calm, sheltered, and ideal for swimming.
Plants, wildlife and fungi
Visit the Atlas of Living Australia for a list of species recorded in William Bay National Park.
Traditional Owners
We recognise and acknowledge Menang people as the traditional owners of William Bay National Park.