Subject categories
Agriculture, Business, Commerce & Industry → Power resources
Agriculture, Business, Commerce & Industry → Power resources - New Zealand
Agriculture, Business, Commerce & Industry → Water-power
Climate, Environment, Natural Resources & Disasters → Lakes
Climate, Environment, Natural Resources & Disasters → Power resources
Climate, Environment, Natural Resources & Disasters → Power resources - New Zealand
Climate, Environment, Natural Resources & Disasters → Water conservation
Climate, Environment, Natural Resources & Disasters → Water-power
Climate, Environment, Natural Resources & Disasters → Water-storage
Communications, Infrastructure, & Transport → Hydroelectric power plants
Communications, Infrastructure, & Transport → Power resources - New Zealand
Communications, Infrastructure, & Transport → Water-power
Communications, Infrastructure, & Transport → Water-storage
Crafts & Visual Arts → Underwater photography
Documentary
Documentary → Documentary films - New Zealand
Hobbies, Recreation & Sport → Scuba diving
Mathematics, Science & Technology → Power resources
Short films
Short films → Short films - New Zealand