Divers Den is the right choice for visiting the Great Barrier Reef. Divers Den has operated from Cairns, Australia for over 30 years, making us not only the largest but also one of the longest established Cairns Diving and Snorkeling companies in the area. Whether you are a beginner or an experienced Diver or Snorkeler, your safety and enjoyment is on the top of our list when you visit the Great Barrier Reef with us.