Climbing Petrův boulder in Levé stěny, graded 2, offers a pleasant introduction to the area. The route is relatively short and features easy holds, making it ideal for beginners or those looking for a relaxed warm-up. While not challenging, the climb provides a good opportunity to practice basic climbing techniques and enjoy the beautiful surroundings of Levé stěny. The rock is generally well-featured, and the exposure is minimal, adding to the climb's forgiving nature. Successfully topping out Petrův boulder delivers a satisfying sense of accomplishment, particularly for novice climbers.