Things to Do in Australia in May

May marks the first full month of the dry season in Australia's tropical north. Kakadu National Park transforms from a largely inaccessible wet-season marshland into one of the most spectacular wildlife corridors on the continent. The floodplains of the Yellow Water Billabong are contracting. This concentrates saltwater crocodiles, jabiru storks, and thousands of magpie geese into viewable clusters along the remaining waterways. The air still carries the green, vegetal scent of recent rains. The oppressive humidity has broken. Mornings start around 20°C (68°F) with a clarity that makes the escarpment country glow ochre and amber. Jim Jim Falls and Twin Falls are still flowing hard from wet-season reserves. You will not see this by July. The mosquitoes are calming down but have not vanished entirely. Long sleeves at dusk remain non-negotiable. Four-wheel-drive tracks to more remote sites are reopening week by week through May. Check conditions before committing to a route. Book wildlife cruise operators at least two weeks ahead. The best dawn departures fill quickly once word spreads that the dry season has arrived.

May on the Great Barrier Reef feels like the ocean exhaling after wet season. The visibility sharpens to 15-20 metres (50-65 feet) as runoff sediment settles. Coral spawning remnants have cleared. The dangerous stinger season that closes netted swimming areas along the Queensland coast is fading. Water temperature sits around 24-25°C (75-77°F). A 3mm shortie wetsuit is enough for most people. If you run cold, a full suit keeps you comfortable on a second or third dive. The outer reef platforms departing from Cairns and Port Douglas carry noticeably fewer passengers than they did in January. This means less fin-churned sand, shorter queues for the introductory dive briefings, and more time in the water per person. Manta rays are frequently spotted at sites around Lady Elliot Island through May. They are drawn by plankton blooms in the cooling water. The trade-off is that some smaller operators reduce their schedules as tourist numbers dip. The cheapest budget boats may run only three or four days a week rather than daily.

The Red Centre in May gives you the outback you dreamed of, not the furnace that greets summer visitors. Daytime highs around Uluru park at 22°C (72°F), good for the full 10.6 km (6.6 mile) base loop that rangers shut down before noon in January's 42°C (108°F) blast. The light steals the show. Low autumn sun stretches golden hour and fires the rock's iron skin through terracotta, rust, then burgundy, colours the overhead summer beam simply cannot paint. Mornings bite. Expect 3-4°C (37-39°F) at dawn. Viewing platforms stay quiet, nothing like the July and August crush. Silence gets physical. Stand at Mutitjulu Waterhole before the groups roll up and you will hear only spinifex shifting and the occasional wedge-tailed eagle riding thermals overhead. Kata Tjuta's Valley of the Winds, a 7.4 km (4.6 mile) loop among domed giants, rewards even more and carries fewer boots. Flies drop to a manageable handful, not the swarming veil that defines summer.

Sydney in May ditches summer crowds and sticky air. Mornings open at 13°C (55°F) and climb to a clear 19-20°C (66-68°F) by midday, prime for long hours outside. Harbour kayaking routes that buzzed with rentals and jet skis in January calm enough for you to paddle from Lavender Bay past Luna Park's grin, around sandstone headlands, into hidden coves like Store Beach in Manly where bush meets tide and kookaburras laugh from spotted gums. The Bondi to Coogee coastal walk, a 6 km (3.7 mile) clifftop ribbon along the Eastern Suburbs, hits peak condition in May. Sandstone stays dry, the ocean rolls a deep winter blue, and Bronte and Clovelly cafés have free tables. Water drops to about 20°C (68°F). Brave it if you like. Bronte's ocean pool, wave-flushed and rock-rimmed, beats open surf for most. Late May fires up Vivid Sydney. Opera House sails and harbour foreshore glow with projected art and the whole harbour flips character after dark.

The Blue Mountains sit 90 km (56 miles) west of Sydney and deliver the closest thing Australia has to a northern-hemisphere autumn. Introduced deciduous trees lining Leura and Katoomba villages flare copper and gold through May. Drop into the Grand Canyon Track, a 6.3 km (3.9 mile) loop that plunges into a fern-filled slot canyon ten degrees cooler, scented by damp sandstone and eucalyptus oil, and you feel you have crossed into another climate. Mist drapes the Jamison Valley at dawn, giving the Three Sisters their most cinematic silhouette. It burns off by 10am and stays gone until the next sunrise. The National Pass from Conservation Hut to Wentworth Falls clings to a cliff with 300-metre (984-foot) drops. May rains keep waterfalls flowing and the bolted metal staircase dry enough to descend without white-knuckling the rail. Escarpment temps run 5-7°C (9-13°F) below Sydney, so gloves and a beanie feel good at the trailhead until the climb warms you.

Western Australia's Margaret River region in May has finished the frantic harvest weeks of March and April, and the winemakers have a moment to breathe. Cellar doors that were too busy for real conversation in peak season suddenly have time to walk you through a vertical tasting. They explain why the same cabernet sauvignon tastes different from the north end of the appellation versus the south, where the maritime influence off the Indian Ocean adds a saline edge to the tannins. The weather cooperates: days around 19°C (66°F) with the occasional shower, cool enough for walking between cellar doors along the farm roads. The marri trees are dropping their red-capped honky nuts and the air smells of wet karri forest and woodsmoke from the first fireplaces of the season. The Cape to Cape Track, a 135 km (84 mile) coastal trail running from Cape Naturaliste to Cape Leeuwin, is sectioned into day-walk portions. The stretch from Wilyabrup Cliffs to Moses Rock passes sea caves and granite headlands where, if you time it right in late May, you might catch the first southbound humpback whales of the season breaching offshore. The Southern Ocean swells hit hard into the limestone coastline, throwing spray across the viewing platforms at Canal Rocks. Bring a windproof layer and expect to taste salt on your lips. Regional restaurants pivot to autumn menus in May: think slow-braised lamb, truffle-season dishes from Manjimup, and marron (freshwater crayfish) grilled over coals. Worth it.