This is photo of the crater of Mount Ruapehu which served as Orodruin, Mount Doom, in "The Lord of the Rings" series of movies. Filming was done on the other side.
This is a shot concentrating on the crater of Mount Ruapehu. Even covered in snow and clouds, it is still intimidating which explains why it was used for Mount Doom.
This is Lake Taupo, a water filled crater. The tour stopped for lunch in the town which shares its name with the lake. By the lake it was especially windy.
On the way to Rotorua, the tour stopped at the very turbulent Aratiatia Rapids which are spanned by a bridge. This is how the rapids looked from one side of the bridge.