HBO has released a new featurette about the filming of Game of Thrones in Iceland. This is the third year Game of Thrones has filmed in Iceland. In previous years, the show filmed during the winter months, when the landscapes were covered in snow. For Sesason 4, they filmed during the summer months and were able to take in the country's luscious green landscapes and majestic waterfalls. "It's like summer vacation," says director Alex Graves Of course, with all of that beautiful weather comes heat, which can make things uncomfortable for certain actors, given how their characters dress in Westeros. "We're all kind of rather regretting the fact that Wildlings wear fur," says Rose Leslie (Ygritte). "It's not a good idea to wear fur in this heat." "Everyone's embracing it apart from grumpy old me in my armor," says Rory McCann (Sandor "The Hound" Clegane). "I'm roasting." Iceland is only one filming location used by the show's producers while filming Game of Thrones' fourth season. Others include Northern Ireland and various location in Croatia. The show films in different locations simultaneously in order to follow different characters who are in different places in Westeros throughout the season. Game of Thrones Season 4 premieres April 6, 2014.