英文關鍵字
active
activity
adventure
background
backpacker
balance
boy
brave
brook
camp
casual
challenge
cheerful
child
childhood
closeup
concentrated
creek
cross
day
dirt
feet
forest
health
kid
lake
little
male
mountain
obstacle
outdoors
path
people
person
pond
river
rocks
sneakers
stone
summer
tourism
tourist
trainers
travel
trekking
vacation
walk
walking
water