Climbing "Perný den" (8/8+) in "Průchod" is a formidable challenge, demanding a combination of power, precision, and unwavering determination. The "Průchod" sector, already known for its demanding routes, provides the perfect setting for this testpiece. The climb itself likely involves a series of powerful crimps, technical footwork, and perhaps even some dynamic moves. Success on "Perný den" would be a testament to considerable dedication and a mastery of hard climbing techniques. It's a route that likely leaves you feeling utterly spent, but with a profound sense of accomplishment.