The Ruahines are a set of ranges/what some people would call mountains.The Ruahines run just south of Napier and run right down the East Coast to Wellington. The highest point of the range is at Mangaweka at 1733 metres or 5686 feet. The Ruahines are ideal for people who love the great outdoors, hiking, tramping and hunting.
The lower levels of the Ruahines are more suited for day trekking and family groups. The higher levels of the Ruahines are best suited for keen, experienced trampers and hunters.
There are plenty of huts to stay in, in the Western Ruahine Forest Park.
Here's a Department of Conservation (DOC) website that shows the locations of all the huts in the Western Ruahine Forest Park. http://www.doc.govt.nz/parks-and-recreation/places-to-visit/manawatu-whanganui/manawatu-area/western-ruahine-forest-park/places-to-stay/
Highlights of eastern side of the Ruahines Forest Park are in the following link:
Huts in Eastern Region http://www.doc.govt.nz/parks-and-recreation/places-to-visit/hawkes-bay/hawkes-bay/eastern-ruahine-forest-park/places-to-stay/