This is one of the free major attractions of the river, which can be used by almost all age groups. The rockslide is a 60-metre-long natural water slide. The rocks have been smoothed by the constantly running water of the Wharekopae River. Boogie boards, inflatable mattresses and inner tubes can be used to slide on and it's a wild ride. Care should be taken and check in with the locals first, if you're feeling unsure about racing down it.
Drive approximately 50km north-west from Gisborne on the Wharekopae Road towards the Eastwoodhill Arboretum and you will reach the small community of Rere. Heading down to the Wharekopae River will bring you to the Rere Falls and the Rere Rock Slide (we should mention that these are two different parts of the river just in case you're wondering if people really slide over the falls).
Rere is a small community in the northeast of New Zealand's North Island. it is located in the upper valley of the Wharekopae River in remote country in the foothills of the Huiarau Range, inland from Gisborne. It is notable for the Rere Falls and Rere Rock Slide, both on the Wharekopae River.
Rere Falls, while not very tall at 5m, is a picturesque 20m wide waterfall. It is possible to walk behind its cascading curtain of water, although the rock face can be slippery.
Rere Rock Slide has been included in the NZ Automobile Association's 101 Must-do places for Kiwis. It is a smooth, natural rock formation 60m long, at an angle of about 30°, over which the Wharekopae River rushes like water in a giant water slide. With a little care, it can be slid down on boogie boards, tyres and the likes.Provided By: https://en.wikipedia.org/wiki/Rere