Or has not played the game the last year , I think that ' s more likely actually . <| sep |> It ' s pretty crazy . One great book I ' d recommend to anyone who loves truly dark skies like those found in the National Parks is The End of N i g h t N i g h t S e a r c h i ngDarknessArtificialdptel . Each chapter is focused on certain areas of specific levels of darkness chapter one focuses on areas that are bortle class 9 , the worst quality of darkness possible , and chapter nine focuses on areas that are bortle class 1 , the darkest skies on Earth . Naturally he visits many national parks as the book progresses . The wikipedia page on the bortle classes , specifically its description of bortle class 1 skies , makes me wanna hop on a plane right now and get to a national park asap .