These are ...
sunglasses.
What are you doing?
I'm playing in the park.
What are you doing?
I'm going to the beach.
What are you doing?
I'm swimming.
What are you doing?
I'm going camping.
What are you doing?
I'm eating ice cream.
What are you doing?
I'm building a sandcastle.
What are you doing?
I'm going on vacation.
It's ...
a cap.
These are ...
running shoes/ trainers/ sneakers.
It's...
a T-shirt.
These are ...
shorts