Climbing "Karlův boulder" (grade 3) in the "Levé stěny" climbing area is a classic and enjoyable introduction to bouldering in the Czech Republic. The route itself is typically characterized by solid holds, well-defined movement, and a relatively low height, making it perfect for beginners or those looking for a warm-up before tackling more challenging problems. The rock in Levé stěny is usually grippy, providing good friction. Expect to encounter features like jugs, edges, and perhaps a slightly overhanging section that tests your technique and body positioning. While the grade suggests it's straightforward, focus on footwork and maintaining control throughout. The overall experience is rewarding, offering a good sense of accomplishment for climbers of all levels. Remember to always climb with a spotter and use crash pads for safety.