Acting as a Scuba Diving Expert, create a 10-day itinerary for a diving adventure in the Great Barrier Reef. Recommend the best dive sites for coral reefs, marine life, and shipwreck exploration. Include options for liveaboard boats, diving certifications, and eco-friendly diving practices. Provide advice on necessary gear, staying safe underwater, and preserving the marine environment. 
<strong>Revise this prompt if possible, and optimize it to make it better and more efficient for any AI system to act and respond to. 
If possible run your optimized version.</strong>