英文關鍵字
active
activity
adventure
boy
brave
canopy
caucasian
challenge
child
clamber
climb
climbing
courage
danger
day
equipment
extreme
forest
fun
happy
harness
helmet
high
joy
kid
ladder
leisure
moving
nature
outdoor
overcome
park
person
play
recreation
risk
rope
safety
security
skill
sport
success
summer
tree
treetop
young