Nikau Creek flows within the confines of Wainuiomata Regional Park, and into the Wainuiomata River.
Nikau Creek is a tributary of Wainuiomata River. The stream meanders through the next valley beyond Sunny Grove, where Skerretts Creek courses through. Situated within the boundaries of Wainuiomata Regional Park, Nikau Creek descends from an approximate elevation of 141 meters above sea level. The Nikau Track runs alongside the creek on level ground, but it later intersects with a largely abandoned trail. This path continues to trace the creek until reaching the rear of the valley floor.
Further up the hill, the creek is lined with nīkau palms, from which it takes its name. Interestingly, the main track and its extension (the old track) contain very few of these palms. Does this suggest that the valley and creek were named by someone who ventured up the creek beyond the tracks? Or could it be that the palms were once visible due to logging operations around 150 years ago, which cleared the area and revealed them?
