That is amazing. Really makes you respect them. So what can we do to ensure the survival of coral reefs?
When diving, be careful not to touch the coral, either with your body or your equipment. Also, we have to be extremely careful in the boat, so we don't drop anchor on a reef. Certainly, no rubbish should ever be dumped there, for obvious reasons. And, naturally, you shouldn't even think about taking some coral home as a souvenir!