architecture
asia
attraction
beautiful
blue
cascade
concrete structure
daytime
electrical
electricity
engineering
environment
factory
flood
flow
fortification
generator
hill
hong kong
hydraulic
hydropower station
industry
lake
landmark
landscape
mountain
mountains
nature
outdoor
overflow
power generation
powerful
resource
river
river lake
rock
scenic
sky
station
summer
supply
sustainable
technology
tourism
travel
trees
valley
view
wall
water