Kostrzyna (906 m a.s.l.) is a well-defined peak in the Suche Mountains, part of the Kamienne Mountains in the Central Sudetes. With its steep slopes and a distinctive small summit cone, this is a mountain that genuinely feels like a proper top. If you're after a peaceful forest hike far from the tourist crowds, Kostrzyna delivers.

The entire mountain is covered in lower montane forest, which shifts beautifully with the seasons — lush green in spring, golden and russet in autumn. The steep northern and southern flanks give the peak a bold character, and at the foot of the northern slope, at around 800 m a.s.l., you'll find a curious rock formation known as Małpia Skałka ('Monkey Rock'). Kostrzyna sits directly between Suchawa (928 m) to the east and Włostowa (903 m) to the west, forming a compact ridge. The whole area falls within the Wałbrzych Landscape Park, ensuring tranquillity and unspoilt nature.

• Mieroszów / Wałbrzych — blue trail (Mieroszów to Wałbrzych route), difficulty: moderate

• The peak lies within the Wałbrzych Sudetes Landscape Park.
• Near the base of the northern slope, look out for Małpia Skałka rock formation at approx. 800 m a.s.l.

Kostrzyna is built from Permian porphyry (trachyte) — ancient volcanic rocks belonging to the northern wing of the Intra-Sudetic Basin. It's a quiet but geologically fascinating corner of the Sudetes.