Votna's dam photographed from a high angle view. Votna is a lake in Odda, Norway
Credit: Morten Falch Sortland/Getty Images

Travelers who book a round-trip flight from the U.S. to Oslo, Stockholm or Copenhagen on Scandinavian Airlines this summer can get a free five-day car rental from Avis to drive through the Norwegian fjords, explore Sweden’s pristine beaches, or wander through castles in Denmark.

Scandinavia is an unexpected but incredibly amazing destination for road warriors. Those who visit near the summer solstice will be able to experience 24 hours of sunlight in the northern parts of Sweden and Norway — meaning you never have to stop driving (but don't drive tired).

And the national parks rival those of more crowded destinations like Iceland. In Sweden, roadtrippers should check out Skånes Grand Canyon, filled with precipitous cliffs and luscious forests. There’s also Koster Island, Sweden’s first national marine park, and Grebbestad, where adventurers can join an oyster safari.

Landscape of Lofoten And Vesteral Islands Norway
Credit: Angela Buser/Getty Images

In Norway, one of the most famous drives is up from Oslo to fjord territory. Norway’s 18 national tourist routes wind throughout the country and feature some of the country’s most scenic views: past waterfalls, along the ocean and bridges across dramatic cliffs.

And those visiting Denmark can find popular beaches throughout the country. There are over 4,500 miles of coastline in Denmark and, with a population of 5.7 million people, the beaches rarely reach the crowds we know in the United States.

In order to get the free rental car, travelers must book from February 15 through March 15, 2018 on travel from May 18 through August 16. All car rentals should be booked by March 31.

For more information, contact Scandinavian Airlines.