If you want to go diving, i have the place for you!
Great barrier reef in Australia.

Great barrier reef is the largest single structure made by living organisms.
The reef is 2,900 km in the area and contains off 2900 reefs and 900 islands.

I went diving in whitsunday islands but there are many places around the coast off Australia offering trips to go diving and to see different parts off the area. There are everything from a day long trip to a week even two week long cruises that takes you around.

Below i have added a few links to agencies that offers barrier reef trips:

Reef trip
Dive the world

The sad part is that the great barrier reef is dying so if you have the chance to get to see it, don’t hesitate to take the chance. you won’t regret it, it will be one off those experiences that you will look back on remembering for a long time.