Perched across from the rugged profile of The Bihedral, Summer Nights offers a straightforward, approachable ascent on Boulder Canyon’s Cascade Crag. This single-pitch sport climb spreads out gently over a 70-foot slab that demands steady footing and a calm focus rather than explosive power. From the moment you step onto the rock, the route invites you into a pocketed niche where smooth granite stretches upward under an open sky. The beginning carries you past two bolts before the line diverges left, flowing along easier slab terrain peppered with precise bolt placements. The crux emerges near the top, where you negotiate a small overlap—this modest obstacle asks for solid body positioning rather than desperation. Passing this, you reach comfortable anchors equipped with Mussy hooks, allowing for secure top-outs or rope management.

Though Summer Nights charts a well-bolted path with nine points of protection, there’s room to explore natural features on the left side of the route’s start. If you prefer a touch more variety and traditional challenge, carrying some small gear complements this lightly bolted option and opens lines in the same area. The rock quality remains solid, typical of Boulder’s granite slabs, providing dependable friction for edging and smearing. The climb, rated a soft 5.9-, is an excellent choice for those seeking a manageable challenge with opportunities to refine slab techniques.

In Boulder Canyon, accessibility and scenic backdrop are part of the package. The approach is short and direct, trading forest cover for granite exposure and panoramic views. Weather here plays a role — late afternoons in summer bring warmth, but winds sweeping through the canyon can cool the rock, encouraging leisurely pacing and timely hydration. Footwear with dependable rubber is essential to handle the slicker slab sections while keeping feet poised over tiny edges.

This route echoes the spirit of early ascents by climbers like Ed Ash in the 1980s, blending historical appeal with modern sport security. Its position near other climbs means you can string together multiple pitches in a day, making it a practical stop for both day-trippers and visiting climbers. Whether refining slab skills or simply soaking in Boulder’s unique climbing terrain, Summer Nights promises steady movement, solid holds, and a calm rhythm — a quietly rewarding slice of Colorado’s alpine rock.