Don’t throw any rubbish in the sea and try to avoid plastic packaging wherever you can! When you do have plastic packaging – always, always recycle it, don’t just throw it in the trash or it finds it’s way into the sea where it has a devastating effect on the marine ecosystem.
Also, when you dive, make sure to avoid having any physical contact with the coral as it is extremely fragile and can easily break, yet takes an extremely long time to grow back.
Don’t touch or interfere with anything underwater (unless it’s rubbish, in which case take it out – unless it’s so old something has now made it’s home there!). Don’t throw anchors anywhere there might be coral and avoid using suncream where you can, because it can cause coral bleaching.