Clamshell Falls is a cascade waterfall on Behana Creek, located in the Wooroonooran area of Tropical North Queensland, roughly 30 kilometres south of Cairns. It sits at the end of the Behana Gorge trail, a 6.

6-kilometre return walk that follows a paved service road through lush rainforest, with gentle inclines and water crossings along the way.

The falls tumble down smooth granite rock into turquoise freshwater pools, making them a popular spot for swimming and cliff jumping. The surrounding gorge is fed entirely by freshwater, with no risk of saltwater crocodiles.

Access requires a private vehicle via Behana Gorge Road, which turns off the Bruce Highway shortly after Gordonvale, passing in the shadow of Walsh's Pyramid to a small car park at the trailhead.