英文關鍵字
adventure
air
alps
aqua
beauty
boulders
breathe
cascade
cataract
clear
cool
creek
current
dangerous
energetic
environment
flow
flowing
foam
freshwater
great
green
halt
melt
moss
mountain
natural
nature
noisy
pure
rapids
refreshing
river
roaring
rock
security
smoky
source
spray
stream
tranquility
vital
walking
water
waterfall
wet
white
wild