The scenes involving Frodo, Sam and Gollum's trek through the "razor sharp rocks" of the Emyn Muil, and later through the desert flats of Mordor, were largely shot on Whakapapa Ski Field, on the slopes of Mt Ruapehu. The location is a short walk from the parking space at the top of the access road to the ski field, which branches off the main highway a few km past National Park. Warm clothing and solid footwear are recommended! The weather is prone to quick changes, and cold winds, rain, and even snow should be reckoned with even in summer. If the weather is nice, it is a good place to view Mt Ngauruhoe, aka Mt Doom.