Český ráj, or the "Czech Paradise," is a picturesque region in the Czech Republic known for its stunning natural landscapes, rock formations, and historical sites. It is located in the Liberec and Hradec Králové regions, offering visitors a mix of outdoor activities, including hiking, cycling, and rock climbing. The area is famous for its unique sandstone cliffs, which have been shaped by erosion over millions of years. Český ráj is also home to several castles and chateaus, such as Trosky Castle and Hrubá Skála, making it a popular destination for both nature lovers and history enthusiasts.