Is he windsurfing?
No, he isn't windsurfing, he is snorkeling
Are you kayaking?
Yes, I'm kayaking
Is he diving?
No, he isn't diving. He is windsurfing
Is she surfing?
Yes, she is surfing
Is he snorkeling?
No, he isn't snorkeling. He is swimming
Are they sailing?
Yes, they are sailing
Are we swimming?
No, we aren't swimming. We are diving.
Is she waterskiing?
Yes, she is waterskiing.