Climbing "Vlnky" (Waves) in Předhradí is a delightful experience for a 4th grade climb. The route follows a gently undulating rock face, giving it the name "Waves". While technically not challenging, the holds are interesting and varied, offering a good introduction to different types of rock features. The exposure is moderate, providing a sense of accomplishment without being overly intimidating. It's a fun climb with pleasant views of the surrounding landscape, making it a perfect choice for beginners or a relaxing day at the crag.