The Czech town of CK, full name is Krumlov, CK is an abbreviation of the English name, is regarded as a nickname by Chinese tourists. This is a small town built in the Middle Ages, the clear Voltava River around the city, forming a unique scenery. Due to traffic jams, without war damage, it maintained the style of the 18th century and became a popular tourist destination for net reds. It takes physical strength to see the scenery. When I climbed the top of the mountain castle viewing platform, I was exhausted, but the charming scenery in front of me immediately excited and forgot the fatigue. The dense red-pointed roof, surrounded by a sparkling river, the church's pointed tower, the green trees and green lawn covered hills, the combination of movement and static, it is almost like seeing the real fairy tale world.