What are they doing?
surfing
What are they doing?
skateboarding
What are they doing?
canoeing
What are they doing?
bouldering
What are they doing
cycling (riding a bike)
What's he doing?
fishing
What are they doing?
caving
What are they doing?
hiking
What are they doing?
skiing
What are they doing?
diving
What are they doing?
snowboarding
What is she doing?
water skiing