In the Czech Republic, the most valuable area is protected in the Šumava National Park and Protected Landscape and the UNESCO Biosphere Reserve. Part of the German section is protected as the Bavarian Forest National Park. The Bohemian Forest is a popular holiday destination because it is excellent hiking country. Most interesting natural and cultural sights are connected with more than 500 km of summer marked trails and many bike trails. However, park administration is not always successful in its task, and many believe the rapid growth of tourist accommodation and services is destroying the former calm of the Šumava region. Šumava National Park is also suffering from problems connected with bark beetles, and there is heated debate about how to deal with them.