The Crater Rim Walkway is an attractive and rewarding walk. It passes through some of the finest remnants of native forest on the Port Hills as well as areas planted in a mixture of native and exotic trees. Along the well formed tracks there are magnificent views over Lyttelton Harbour (Whakaraupo) and along the summit ridge the hills clearly show the volcanic nature of the land, while views over Christchurch City and the plains are equally impressive.
The Port Hills are a range of hills in Canterbury, New Zealand, so named because they lie between the city of Christchurch and its port at Lyttelton. They are an eroded remnant of the Lyttelton volcano, which erupted millions of years ago.
The hills start at Godley Head, run approximately east–west along the northern side of Lyttelton Harbour, and continue running to the south, dividing the city from the harbour. The range terminates near Gebbies Pass above the head of the harbour. The range includes a number of summits between 300 and 500 metres above sea level. The range is of significant geological, environmental and scenic importance.