The Thorsborne Trail is a 32 km multi-day walk along the eastern coast of Hinchinbrook Island, widely regarded as one of Australia's great wilderness hikes. The trail takes 3–5 days at a comfortable pace, camping on beaches backed by rainforest, crossing clear creek mouths, and passing under the granite peaks of Mount Bowen (1,121 m — the highest point in Queensland's national parks islands).
The walk is genuinely remote. There are no facilities on the trail: no fresh water supply beyond creeks (which must be treated), no shelter beyond the campsite areas, and no easy way off if conditions deteriorate. Saltwater crocodiles are present and precautions are required at creek crossings and beach camps. The rewards — pristine beaches, dense rainforest, extraordinary birdlife, and almost total solitude — are commensurate with the effort.
Access is by water taxi from Cardwell (30 minutes). Permits are essential and must be booked well in advance through Queensland Parks. The best season is May to September, after the wet season and before the summer heat.