You step over sun-warmed limestone platforms that feel like nature's own pontoon dock, the Indian Ocean lapping at honeycombed rock worn smooth by millennia of tide. Mettam's Pool sits tucked into North Beach's coastline, a natural enclosure where reef and sand meet in water so still your children can float face-down, watching crimson starfish cling to boulders two metres below.
“One of Western Australia's few accessible shore-based reef ecosystems where ocean species thrive in bathtub-calm shallows.”
Credit: FlickrBeach Limestone
The pool's sheltered geography—a crescent of limestone that breaks the ocean swell—creates a permanent nursery for species typically found farther offshore. You'll fin past forests of brown kelp, their fronds swaying in the gentle current, while schools of herring sweep past your ankles. The reef's crevices hide blue-ringed octopus, moray eels, and translucent shrimp that glow against the charcoal rock.
Morning light penetrates deepest here, turning the sandy bottom into a theatre of shadows and dappled gold. You'll share the water with local swimmers doing laps along the rock wall, while shore fishermen cast lines from the northern ledge. Pack reef-safe sunscreen and water shoes—the limestone can be razor-sharp—and arrive before eleven when offshore winds pick up and visibility drops from eight metres to five.
