Kýlek, graded 6- (equivalent to a French 5b/c or UIAA V+), is a quintessential climb at the 'U vodojemu' crag. This route is a true classic, celebrated for its engaging and varied climbing, often featuring a blend of technical face climbing and enjoyable moves on good holds. While not overly steep, it demands precision and good footwork, offering a satisfying challenge for its grade. Protection is generally adequate, making it a relatively safe and highly recommended ascent for climbers looking to experience the character of this popular Czech climbing area. It's often seen as a benchmark for the grade.