One Tree Hill Monument is a volcanic hill and historic monument in the One Tree Hill Domain Recreation Reserve, in Olive Grove, Auckland. Visitors can walk up by stairs or drive up on the paved road, and people come for the 360-degree views over the city and the wider region. The reserve is good for picnics, barbecues, cycling and hiking, and it links with Cornwall Park for a longer walk.
Customers say the views are the main reason to visit, and that the walk up is worth it. Several say the spot is great for a day outdoors, with picnics and the chance to combine the hill with a tramp through Cornwall Park. Weather and time of day make a big difference to the experience. One visitor found the spot dull, and said the climb was the best part, with the views from the top less impressive than expected. The site is a popular stop for people who want an easy hill walk with a city outlook.