Cardstone Weir sits on the Tully River in Queensland's Tully Gorge, accessible via Tully Gorge Road roughly 40 minutes northwest of Tully. A small parking area beside the road leads down a short flight of steps to a lookout over the river.

While the weir itself is modest, the vantage point offers views of the fast-moving Tully River and a glimpse of Champagne Falls downstream. The weir serves as a well-known reference point for exploring the surrounding area.

Ponytail Falls, nestled in the rainforest along the river, is reached by continuing along the road from the weir and watching for the number 11 painted on the road surface.

White-water rafters also pass through this stretch of the Tully River, one of Australia's premier rafting runs.