What are the dangers of scuba diving on the Great Barrier Reef?

Perhaps the greatest risk is panic. When people panic, they tend to hold their breath and, when they ascend, the air in their lungs expands and can rupture a lung (or other similar medical conditions). It's easy to avoid though -- just breath normally. Staying down too long is also a problem. When you certify as a Scuba diver, you'll be taught all about that. Another problem are big waves. The solution? Dont Dive When The Waves Are Big (like I had to say that! LOL ). Other dangers include hypothermia -- getting too cold, and exhaustion. The remedy for those is to get back on the beach or boat before they happen. I wouldn't worry about creatures eating me. You're more likely to get hit by lightning. If you NEED to worry about creatures, in California, far more people step on Sea Urchins than get attacked -- so watch where you step.

Diving is based on being calm and relaxed. If you can do that, the risks are very few.

but, the TRUE risk of SCUBA diving is that you will fall so in love with it that you will think of nothing else and feel empty inside until the next time you DO get to go SCUBA diving again