英文關鍵字
acrophobia
action
active
activity
adrenaline
adventure
boy
brave
bridge
challenge
child
climb
climbing
couple
courage
course
danger
equipment
extreme
family
fear
forest
fun
girl
green
height
helmet
high
joy
ladder
leisure
man
mountain
natural
nature
outdoor
outdoors
park
people
play
playground
risk
rope
safety
skill
sport
strength
summer
tree
wire