Paddling in Cradle Mountain-Lake St Clair National Park

Cradle Mountain-Lake St Clair National Park sits in Tasmania's Central Highlands, a 1,614-square-kilometre wilderness of glacially carved terrain within the Tasmanian Wilderness World Heritage Area.

The water here is the direct product of that glacial history: deep lakes occupying ancient ice-scoured basins, and rivers draining off high alpine country into rainforest valleys.

The park's two access points — Cradle Mountain in the north and Lake St Clair in the south — are separated by roughly 65 kilometres of trackless terrain with no road connection between them, so paddlers approach each end independently.

Lake St Clair anchors the southern paddling. Known to the Palawa as Leeawuleena — "sleeping water" — it is the deepest lake in Australia and sits at the headwaters of the Derwent River.

The put-in is at the boat ramp at Cynthia Bay, from which paddlers can head north along either shore and complete a full circumnavigation. At about 16 kilometres long, the lake generates real swell when the wind runs hard.

A north-westerly funnelling down through Byron Gap can push considerable waves across the full fetch; a south-westerly, by contrast, leaves the western shore sheltered behind the Olympus Range.

A comfortable circumnavigation takes three days, though the western shore — driftwood beaches backed by old-growth rainforest, sandy camps beneath Mt Ida — rewards a slower pace.

Lake St Clair works well for both sea kayaks and open canoes, and road access at Cynthia Bay is straightforward. At the northern end of the park, Dove Lake sits directly beneath Cradle Mountain in a classic glacial cirque.

Guided kayak tours operate on the lake using hand-built King Billy pine kayaks — the same ancient Gondwanan conifer that lines much of the surrounding forest. This is flatwater, guided, interpretive paddling rather than independent touring.

Weather across the park is genuinely alpine and genuinely unpredictable. The high season runs from late spring through early autumn, roughly November to March; winter brings snow and some road closures.

On Lake St Clair especially, conditions can shift fast — read the forecast before choosing which shore to commit to, and be prepared to wait out wind. The park sits within a World Heritage Area, and that status shapes how you use it.

Check current entry and permit requirements with the Parks & Wildlife Service Tasmania before launching; rules for overnight trips and camping on the water can differ from what applies outside the park boundary.