Oyster Stacks is part of a sanctuary zone in the Ningaloo Marine Park and the best snorkel site in this area. It's a popular spot to snorkel self-guided.
Snorkeling during high tide only! Please avoid low tide to protect the corals. At low tide the water level is too shallow and you may destroy corals while you are snorkeling. Check the tide times either at Milyering Visitor Centre or follow the link. Tide Times Exmouth
The region has a tropical-hot-desert climate. In autumn and winter from April to September with pleasant temperatures around 25° C which cause an average water temp of about 22°C. It's hot during summer with an average daily temp of 35°C and water temperature around 26°C. It doesn't rain much here; less than 30 days of precipitation with the highest chance for thunderstorms from January to April. Fewer clouds from August to December. Cyclones can occur and are more likely to happen from January to March. In March 2015 Exmouth was hit by one and at the end of April 2014, record-breaking heavy rainfall caused flash floods.