Newsround's Adam may look like he's exploring the Great Barrier Reef in Australia, but he's actually in the middle of an art project in London.
Two artists from America and their friends from around the world have spent years creating a coral reef out of wool, by doing a type of knitting called crocheting.
They did it because coral reefs are important for the environment, but scientists say they are under threat.
Adam went along check to it out, and have a go at crocheting!
Believe it or not, I am actually quite nifty with some knitting needles.
Adam has a go at crocheting!
Unfortunately, crochet is totally different because you only use one needle, with a hook on the end.
You hold the crochet hook in your right hand (if you're right-handed) and you feed the wool through with your left hand.
You pull the wool through a little loop to make your stitch.
My crochet coach was Margaret, who has spent hundreds of hours making a fake coral reef out of wool.
It took the artists years to crochet the woolly coral
She was a great teacher and I picked it up pretty quickly.
You need to concentrate really hard and have good hand-eye co-ordination, but once you get going it's amazingly relaxing.
Margaret reckons that soon I'll be able to crochet and watch TV at the same time... just like she does!