I need to compare a coastal, mountainous or desert area from Australia to a counterpart in a developing country then discuss their management, sustainability, tourism applications etc. I need assistance in choosing countries as I am having trouble finding relevant information.

2 answers

There are mountainous, coastal, and desert areas in many, many countries. Mexico, China, the United States, and many, many others have all three, as does Australia. Look at a map, choose a country that has at least one of these characteristics, and do some research about that nation.
Here's a list of developing countries.

http://www.iawp.org/joiniawp/countrylist.htm