The Orchid walk displays many of the 40 orchid species found around Quinninup. In winter and spring the careful observer may see Spider, Helmet, Snail, Flying Duck, Hammer and Bird orchids flowering along the side of the trail. Other orchid species in the area include Pink Fairy, Cowslip, Slipper, Donkey, Purple Enamel, Pink Enamel, White Bunny, Lilac Sun and Blue Lady.

The trail traverses part of the ancient Paleozoic (400 million years) water drainage system which transects the Quinninup area, and features many gondwanan floral species such as banksia, gravillea, adenanthos and dryandra.
Many colourful species are restriced to this walk and differ substantially from the adjoining forest understory.