North of Perth near Denham, the snorkeling at Shark Bay Marine Park is known mainly for sand flats and grass flats with occasional small coral heads. Generally, it has good marine life. Most of the good snorkeling dive sites in Sharks Bay require either a 4WD vehicle to get to the put-in or use boat-access. It is not uncommon to be snorkeling with dolphins around, especially near Monkey Mia.
For boat access to the Shark Bay Marine Park, there are numerous formal boat ramps located around the bay at Monkey Mia, Denham, Nanga and in Carnarvon (for access to the northern part of the bay).
Overall, Shark Bay Marine Park is the 10th most popular snorkel dive spot of all 24 snorkeling dives in Western Australia.