英文關鍵字
bottom
bowl
cascade
formation
geological
geologically
geology
glen
horizontal
new
nobody
park
people
pool
rock
shaped
small
state
usa
video
water
waterfall
watkins
york
英文關鍵字
bottom
bowl
cascade
formation
geological
geologically
geology
glen
horizontal
new
nobody
park
people
pool
rock
shaped
small
state
usa
video
water
waterfall
watkins
york