Roaring Billy Falls is an impressive natural formation located in Mount Aspiring National Park in the Westland District of New Zealand. It's an iconic cascade-style waterfall, with a total height of 30 metres (98 ft). Its base lies 80 metres (262 ft) high, where the cascading flow meets the Haast River. The area around the falls is lush and green, lined with towering trees and vibrant greenery. A 1 kilometre (0.62 mile) walkway from the carpark on State Highway 6 leads to a observation point for views of the cascading falls. Walkers may also enjoy the many rainforest plants and tree ferns growing along the trail.