I've walked past this spot many times after walking down or before walking up the 97 steps that lead to Mount Eden. I love this street because it's so quiet and pretty. Not to mention the beautiful, highly maintained Government house.
Across the road from the cache is Government House. The entrance on Glenfell Place is the staff and goods entrance. The grounds of Government House Auckland are annually opened to the public as a part of Love Your Mountain Day, organised by the Auckland Council and the Friends of Maungawhau. The day is usually held in early December. Government house is the home of New Zealand's Governor-General and as such is never open to the public.
The site of the present day Government House, Auckland, was first built upon in the 1880s or 1890s, although some of the trees are slightly older, dating from the 1870s. The House is much smaller than the Wellington House, being designed as a family home. The Queen stays at the House whenever she visits Auckland.
Sir Frank and Lady Mappin bought the property in 1921 and spent the next 45 years, after building the residence, developing and landscaping the grounds. They gave the House and land to The Queen in 1962 for use as a Royal or Vice-Regal residence.
Only a few such large, long-established gardens have survived anywhere in New Zealand. The grounds have been endorsed as a "Garden of National Significance" by the New Zealand Gardens Trust. They feature many individual trees that are among the oldest of their kind in the country and because it retains some of the lava outcrops that were once a feature of the area, still covered in places by vegetation that also was once typical. Both the garden's design and its horticultural variety have particular merit.
Information obtained from: https://gg.govt.nz/ (24-03-15)