This is a once-in-a-lifetime opportunity to circumnavigate Australia aboard the luxurious Seven Seas Mariner® and really see it all, from the sails of the famed Opera House in Sydney to the underwater wonder of the Great Barrier Reef. Embark on a 36-Night Grand Voyage on December 15, 2018, where your explorations are limitless. Explore Melbourne's cultural side with tours through its finest museums and most architecturally rich neighborhoods, and in Perth sample exquisite wine and encounter Australia's famous wildlife. ​