Editor’s Note: Sign up for Unlocking the World, CNN Travel’s weekly newsletter. Get the latest news in aviation, food and drink, where to stay and other travel developments. CNN —In our roundup of travel stories this week: a life-changing DNA test, a Georgia-to-Mongolia road trip with unexpected challenges, plus a new report reveals Europe’s cleanest places to swim. For sea swimming, Croatia has the brine that’s most divine, followed by Cyprus, Greece and Slovenia. For inland waters, Bulgaria, Greece, Ireland and Romania are all tied in first place, with Austria and Finland not far behind.

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Persons: John Portmann, van, it’s, Here’s, It’s, Canada’s, James Gillese, Ryan Titchener, Debby, ”, Little Richard, Otis Redding, There’s Organizations: CNN, European Environmental Agency, European Union, overlanding, CNN CNN Travel, Tourists Locations: Georgia, Mongolia, Croatia, Cyprus, Greece, Slovenia, Belgium, Bulgaria, Ireland, Romania, Austria, Finland, Seine, Paris, Arizona, Russia, Australia, America, Lahaina, Maui’s, Canada’s Jasper, Coast, East Coast, Macon, Macon , Georgia