英文關鍵字
blue
boats
boreal
brown
canada
challenge
challenging
clouds
crossing
current
dangerous
dawson
difficult
difficulty
flow
flowing
hilly
motion
movement
muddy
natural
nature
north
northern
passage
pinetrees
power
powerful
rapid
remote
river
rushing
scenery
scenic
shore
sky
spring
springtime
transport
transportation
trees
vessels
water
waterway
white
wide
wild
wilderness
yukon