About this park
Carnac Island has been protected as a nature reserve since 1963. This picturesque 19-hectare limestone island lies approximately 10km southwest of Fremantle.
What makes Carnac Island truly special is its array of unique visitors, such as sea lions and many migratory bird species. Male Australian sea lions (Neophoca cinerea), use the island as a resting spot before returning to the ocean to feed. This is the rarest sea lion species in the world and can often be seen basking on the beach or playing in the shallows. Despite their cute appearance, sea lions are large, agile animals that can become aggressive if they feel threatened. Please respect their space and refer to Be Seal Wise for guidelines and information.
When visiting the island, you must stay on the beach. For your safety and to protect the island’s wildlife, visitors must remain on the beach and are not permitted to venture inland. Carnac Island is home to a significant population of venomous tiger snakes, one of the world’s deadliest snake species.
Birdwatchers will love the rich variety of seabirds including Wedge-tailed Shearwaters, Pied Cormorants, Fairy Terns, Crested Terns, and, if you're lucky, the majestic, White-bellied Sea Eagle. While observing birds, please avoid nesting areas to prevent disturbance. The fairy tern nesting season runs from November to March, during which time all beach access is prohibited, and penalties apply.
Carnac Island is popular in summer and can only be accessed by boat for day trips. You don’t need to set foot on the island to appreciate its beauty - relax and enjoy the view from your boat or kayak. The surrounding waters also offer excellent opportunities for swimming, snorkelling, and scuba diving.
Important reminder: All vessels must anchor outside the yellow markers, away from the beach.
Safety information
Plan when to visit. Read this safety information about swimming, paddling, kayaking, snorkelling and diving. Consider travelling with a personal location beacon (PLB). In the event you need to be rescued it could save your life!
- Avoid venturing inland due to the significant population of tiger snakes.
- Keep your distance from sea lions as they can become aggressive if they feel threatened. Be Seal Wise.
- For information on safety equipment requirements for vessels, refer to the Department of Transport's Safety Equipment Requirements.
- Information on fishing, download the Recreational Fishing Guide from Department of Primary Industries and Regional Development.
Facilities
There are no facilities on the island.
Activities
Bird watching
Boating
Canoeing and kayaking
Nature photography
Scuba diving
Snorkelling
Swimming
Plants, wildlife and fungi
Visit the Atlas of Living Australia for a list of species recorded in Carnac Island Nature Reserve.
Traditional Owners
We recognise and acknowledge Aboriginal people as the traditional owners of Carnac Island Nature Reserve.