Cairns is a little city without any large Attractions, however the things you can do around are fantastic, such as going to the Great obstacle Reef (and if you can go to the outside reefs better, because the inside reefs are not very spectacular, although the cost will be well more expensive.).

The Cable car until Kuranda over the rainforest offers only one of its kind views and you can go for a promenade and watch the waterfalls and forest in a closer look. Other day tours worth to visit such is Port Douglas and a little further Daintree National Park (It is considered the forest with the biggest variety of plants per square meter on the planet).