These are its main layers, starting with the outermost: 1  crust - relatively thin and rocky. 2  mantle - has the properties of a solid, but can flow very slowly. 3  outer core - made from liquid nickel and iron. 4  inner core - made from solid nickel and iron.
The Arizona Memorial program is  75 minutes long. The shortest tour to Pearl Harbor is the 4-hour Pearl Harbor Excursion. All of the other tours include this program, but add other sites such as the Battleship Missouri, Bowfin Submarine, and the Pacific Aviation Museum. Those Pearl Harbor Tours last from 6 to 13 hours. Pearl Harbor can also be visited as part of an Oahu island tour. For those who are only mildly interested in WWII history, but want to see the island, we recommend the Pearl Harbor & Oahu Island Tour. That tour spends approximately 3 hours at Pearl Harbor. Other, similar Combo Tours are available. For more information on how long it takes to tour Pearl Harbor, check out the individual Pearl Harbor Tours.
Not far from Mildura is a world heritage listed Willandra Lakes system and the Mungo National Park. Mungo National Park tours can be taken with Graham Clarke's Harry Nanya Tours. Day tours from April to October and Sunset Tourst from November to March.