The Hunua Ranges frame the region's southeastern skyline and make up Auckland's largest forested landscape. More than 14,000 hectares of native forest filters about 2300mm of rain annually into four dams, which supply most of Auckland's water.
The park itself features tramping tracks, mountain biking, amazing scenery, fishing, swimming pools and waterfalls. The Hunua Ranges are also home to Auckland's only mainland population of one of its rarest bird - the kokako, and a refuge for the native Hochstetter's frog (pepeke).
While parts of the Hunua Ranges are accessible to experienced trampers only, two key areas provide plenty of tracks, views and activities suitable for families. The first of these is in the west of the ranges and includes the popular Hunua Falls and Wairoa Reservoir. The other takes in the south and central part of the ranges around the Mangatangi and Mangatawhiri reservoirs.