The following represent savings of up to $710 for bookings made by December 31 for travel May 3 to October 25, 2017. The Ghan Expedition (four days and three nights in Gold Service); $2789 a person, twin-share. The Ghan Expedition Campaign (Ghan-Hilton packages) includes Top End Encounter (add three nights at Hilton Darwin, two days at Kakadu National Park and East Alligator River, tours, cruises and an overnight stay in Kakadu); from $4049 a person, twin-share. Wine and Island Escape (add four nights at Hilton Adelaide, one-day Barossa Food and Wine tour, two days and one overnight and touring on Kangaroo Island); $4079 a person twin-share. Outback to Oceans (add three nights at Hilton Darwin, Kakadu touring and overnight plus four nights at Hilton Adelaide and Barossa and Kangaroo Island tours and overnight); $5349 a person twin-share.