Geographical features

Surrounded by the sea, a paradise where one wants to be.

Where is it?

Imagine a dark, cool space inside a mountain where bats might live. Where is it?

A massive area filled with salty water, much, much bigger than any lake. There are various creatures living in it, from tiny fish to gigantic whales. What's this enormous body of water?

It's not completely flat, and it's smaller than a mountain. Often, you'll find people rolling down these grassy slopes. What is it?

My parents have three children. My oldest brother is JUNGLES, my older sister is FORESTS and I'm the last-born child. Who am I?

unscramble this word to answer the question

ODSWO

Where do Earth creatures receive the biggest love from the Sun?

A fancy stage for rivers, where hills and mountains stand tall, and the water shows off.

What's this cool nature spot called?