Just 5 km (3 miles) outside Mossman are the spectacular waterfalls and river that tumble through sheer-walled Mossman Gorge. There are several boulder-studded, croc-free swimming holes, and a 2½-km (1½-mile) rain-forest walking track and suspension bridge. (Swimming in the river itself is hazardous, crocs or no, due to swift currents, slippery rocks, and flash flooding.) Keep your eyes peeled for tree and musky rat-kangaroos, Boyd's water dragons, scrub fowl, turtles, and big, bright butterflies—and try to avoid stinging vines (plants with serrated-edge, heart-shaped leaves, found at rain-forest edges). If you intend to hike beyond the river and rain-forest circuits, inform one of the appropriate authorities: Queensland Parks & Wildlife Service (email@example.com), Cairns and Tropical North Visitor Information Centre (07/4051–3588; firstname.lastname@example.org) or the area's local guardians, the Kuku Yalanji, who run the new Mossman Gorge Centre, which has an info-desk, cafe/restaurant, gift shop, gallery, restrooms, showers, and parking.