Hair Dresser earns its place on the southeast face of Underworld Rock, offering a straightforward yet surprisingly gripping climb on a sharply angled slab. This 80-foot route starts with a flakey crack system that warms you up with moderate moves, setting a steady pace before you reach the crux. The climb generally holds a comfortable 5.3 feel, but around 15 feet from the top, a lone bolt guards a bold, handless smear that tests your nerve more than your strength. That section demands balance and focus under pressure—it’s a moment that shakes out the confident from the cautious. Beyond the crux, the slab stretches invitingly, framed by pockets that catch your fingertips and offer subtle texture underfoot. The rock itself is solid, with enough natural features and occasional cam placements to ease your mental load. Hair Dresser isn’t about flashy moves or relentless endurance; it’s a masterclass in quiet commitment on slab climbing, where precision and calm win the day.

Located within the Castle Rock area, just outside the bustle of the San Francisco Bay, the climb benefits from mild weather most of the year and accessible approach trails. Approaching through shaded forest paths, you’ll find yourself immersed in the cool hush of Douglas firs and firmer granite, a contrast to the open exposure on the face. This route’s character lies in its minimalism—the gear is sparse but sufficient, demanding skill in reading the rock and confidence in footwork. Ideal for trad climbers wanting to sharpen slab tactics or sport climbers seeking a straightforward single pitch with a surprise crux, Hair Dresser rewards those willing to embrace its subtle challenge. Whether you're topping out on a clear spring afternoon or catching the quieter moments before sundown, this route brings a refreshing break from the more crowded climbs nearby, inviting you into a space where nature’s silence becomes part of the effort.

Prepare to bring precision shoes with firm edges for the smear moves, a light rack including cams in small to medium sizes, and your best focus for the crux protected by the bolt. The approach trail weaves through gently rolling terrain, and parking with a short walk makes it a quick getaway for an afternoon session or a calm start to a weekend. Hair Dresser rises modestly in star ratings but packs a memorable moment that will stick with you long after the hands leave the rock.