Climbing "Řetězová reakce" (Chain Reaction), a 7+ route in Bivaková, is a memorable experience. The route is known for its sustained difficulty, demanding both power and technique. Expect a challenging sequence of crimps, pockets, and precise footwork. Good friction and mental fortitude are key to overcoming the crux. The exposure adds to the excitement, making it a climb to remember on the crag. It's a true test of any climber aiming to push their grade.