This national park is home to the mystical Whanganui River, New Zealand's longest navigable waterway. Located in the central North Island, the park was created to protect the upper reaches of the Whanganui River. Once an important transport route for both Maori and early European settlers, the 290km-long river flows from Tongariro National Park to the Tasman sea through wild lowland forests. The land surrounding the Whanganui River is remote and rugged and full of the melodies of abundant native birdlife. The Whanganui National Park has a very distinctive landscape of river valley systems with steep slopes, razor-sharp ridges and an almost complete cover of native lowland forest. The park is at the centre of a large sedimentary basin, so the rocks are mostly mudstones - easily sculpted by the river into fascinating shapes. You can also hope for sightings of kākā and yellow-crowned parakeets. At night it's even possible to hear the call of the North Island brown kiwi.