Turquoise glacier water flowing down Pukaki river through the Mackenzie basin

turquoise twizel pukaki river meandering flow kayak sports outdoor recreation distance blue countryside dry mackenzie turquoise glacial water lake pukaki pukaki river mackenzie basin vast landscapes scenic views nature photography southern alps new zealand adventure tourism natural beauty glaciers wilderness outdoor recreation ecotourism environment conservation climate change environmental impacts sustainable tourism geological features flora and fauna wildlife endangered species biodiversity ecosystems conservation areas protected areas world heritage sites hydroelectric power water resources river flow aquatic ecosystems meandering river