Fraser island is the largest sand island in the world and is just 45 minutes by ferry away from Hervey Bay.. It's 124 kilometers long and has an area of 163,000 hectares. There is a 35 kilometer-long beach that most use as a sort of highway to get to the various point of interest around the island. All vehicles on the island are 4-wheel drive so they can get through the thick vegetation at the island, There are trees over 200 years old and 40 meters high, freshwater lakes, a great diversity of birds (230 different species), and wild dingoes. The ferry from the coast to the island with the day tour costs $99 per person, which seems a little steep, but it's worth it.