What is it?
It's a cave.
What is it?
It's a glacier.
What is it?
It's a jungle.
What is it?
It's an ocean.
What is it?
It's a river.
What is it?
It's a swamp.
What is it?
It's a volcano.
What is it?
It's a waterfall.
What's he doing?
He's climbing a volcano.
What's he doing?
He's crossing a river.
What's he doing?
He's swimming under a waterfall.
What's she doing?
She's diving in the ocean.
What's she doing?
She's visiting a glacier.
What are they doing?
They're exploring a cave.
What are they doing?
They're hiking in the jungle.
What are they doing?
They're sailing through a swamp.
