Is he canoeing?
No, he isn't. (He's rafting)
What's he doing?
He's rafting.
Is he cycling?
Yes, he is.
What's he doing?
He's cycling.
What's she doing?
She's swimming.
What's he doing?
He's windsurfing.
What's she doing?
She's horse-riding.
What's he doing?
He's climbing.
Is she climbing?
No, she isn't. (She's hiking)
What's he doing?
He's camping.
What's he doing?
He's water-skiing.
Is she camping?
Yes, she is.
What's he doing?
He's hiking.
What's he doing?
He's canoeing.