Henrietta Rocks is a secluded yet stunning snorkelling spot located on the southeast corner of Rottnest Island. The area boasts serene clear waters and a tranquil atmosphere, making it perfect for a relaxing visit. Grassy cliffs and limestone rocks slope down to a small beach, offering scenic views of Paterson Beach and Porpoise Bay. One of the main attractions is the wreck of the Shark, a barge that ran aground in 1938, now encrusted with barnacles and seaweed, providing an intriguing snorkelling experience.
The Ngank Yira Bidi walking trail passes by Henrietta Rocks, allowing hikers to immerse themselves in both natural beauty and historical significance. While there are no facilities directly at Henrietta Rocks, nearby spots like Army Groyne offer essential amenities.
Visitors often explore here as part of a broader Rottnest Island adventure, enjoying activities like snorkelling, walking, and simply taking in the beauty of the area. The location is accessible via bicycle or the Island Explorer Bus, making it a convenient addition to any island itinerary.