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Australia’s giving away 52 weeks of vacation, but there’s a catch.

You have to guess the points of interest to their vacation destinations.

Together, Virgin Australia Airlines, Delta Air Lines and Tourism Australia are giving away the chance to win one of 52 Aussie ‘Somedays.’

That’s a year’s worth of weeklong trips to Australia, all based on the events, experiences and times of year to go. Each Someday includes a round trip airfare for two and one week’s accommodation.

To participate, visit AustraliaSomeday.com.