Cairns is definitely a must-see
There is so much to see and do in and around Cairns. There are a lot of travellers so it is very easy to meet people in the city. If you're visiting Cairns, make sure to do a two day trip to the Daintree Rainforest or the Atherton Tablelands. Cairns is also a hub for snorkeling and diving in the Great Barrier reef.
Insider Tip:Check out On the Wallaby's day or two day trip to the Tablelands. Consider doing a two day trip to the Daintree and visit the reefs while your there.