Any water you go in that is cooler than body temperature, you loose heat. Even if you are not uncomfortable, repeated dives without exposure protection can lead to hypothermia and increase the risk of decompression illness.
A suit also protects from stings and cuts. Just about anything you come in contact with on a coral reef can hurt you somehow.
__________________
I am not the one who needs mental help. I just need to vent. | 
Do you need to wear a wetsuit 
Linear Mode
