Penguin Island sits 700 metres offshore in Shoalwater Bay, a marine park gazetted in 1990 to protect Western Australia's northernmost breeding colony of little penguins.
The island's limestone foundations rose during the Pleistocene, and its shallow reef platforms now host over 120 fish species, Australian sea lions, and bottlenose dolphins. Free entry to the island itself means visitors pay only for transport or equipment hire, and the bay's sheltered waters make it one of the region's most accessible paddling destinations.
Kayak hire operations run from Mersey Point and Arcadia Drive, where outfitters provide sit-on-top doubles, singles, personal flotation devices, and a mandatory safety briefing. The crossing to Penguin Island takes 15 to 25 minutes depending on tide and wind, and the return paddle offers close encounters with sea lions hauled out on Seal Island's granite boulders. Morning departures between 09:00 and 12:00 avoid the afternoon sea breeze that funnels through the bay, and spring months bring calmer conditions for first-time paddlers. Guided Penguin Island kayak rental tours include a naturalist commentary on the marine park's ecology, while self-guided hire suits confident paddlers familiar with open-water conditions.
The island's discovery centre opens daily from 09:00 to 15:00, and a boardwalk loop connects the penguin viewing area to the island's northern lookout. Little penguins return to their burrows at dusk, but daytime visitors can observe rehabilitated birds during the centre's feeding presentations. The surrounding marine park extends three nautical miles offshore, and its sanctuary zones prohibit fishing to preserve seagrass meadows and algal beds that support the bay's resident sea lion population. Shoalwater's limestone reef flats are visible at low tide, and snorkellers often spot blue swimmer crabs, cuttlefish, and juvenile western rock lobsters in the shallows. Kayakers launching from the mainland beach must navigate a marked channel to avoid disturbing nesting terns on the sand spits that fringe the bay's eastern edge, and ranger patrols enforce a 50-metre exclusion zone around hauled-out pinnipeds from June through November.
6 hr
