The Waychinicup River flows through Waychinicup National Park near Albany in the south of Western Australia, on country belonging to the Menang people. The river empties into Waychinicup Inlet, where the waterway is flanked by polished granite rocks that give the area a distinctive character. The inlet and surrounding estuary have been the subject of fish and invertebrate community research, reflecting the ecological significance of this coastal system.

There is no boat ramp at the site, so paddlers should be prepared to launch from the bank without formal infrastructure. A small campground is located at Waychinicup Inlet, adjacent to the river, though spaces are limited and fill quickly. No dogs or other pets are permitted anywhere within the park. All fishing in the estuary is conducted under permit, and paddlers should be aware of this regulation if they intend to combine fishing with time on the water.

The surrounding landscape supports exceptionally diverse coastal heath, including plant species found nowhere else. Spring brings extensive wildflower blooms across the park's granite slopes. The area is also notable for threatened bird species, including scrub birds, western whistlebirds, and whipbirds, which inhabit the dense vegetation bordering the waterway. Paddlers with an interest in flora and fauna will find the natural surroundings a significant draw. Contact the Albany Parks and Wildlife Office at +61 (0)8 9842 4500 for current permit requirements and campsite availability before visiting.