Mangamate is a basic, scenic campsite on the banks of the Whirinaki River, managed by Ngāti Whare iwi and situated near the settlement of Minginui.

The site is set among a mix of exotic and native trees, including rimu and tōtara, and serves as a convenient gateway to Whirinaki Te Pua-a-Tāne forest.

A standout feature is a 6-metre waterfall at the eastern end of the site, where the Otuwairua Stream drops into the river — swimming and soaking here is considered safe in reasonable weather.

The campsite offers 12 sites with barbecue and toilet facilities, along with a covered seating area. Wooden platforms extend over the river, providing wheelchair-accessible fishing spots.

Activities include trout fishing, swimming, and access to short walks in the surrounding forest. Access is via Minginui Road, with a signed turnoff and a gate partway down the access road. Bookings are made directly through Ngāti Whare.