The castle was abandoned in the 17th century after being damaged during the Thirty Years' War, leading to its systematic decline.
It was strategically positioned to control the trade route leading from Wałbrzych toward Bolków.
The name 'Cisy' is derived from the Polish word for yew trees, which were historically prevalent in the surrounding forest.
Archaeological findings at the site include late-medieval pottery fragments and architectural elements dating back to the 14th century.
The defensive walls feature original masonry techniques that distinguish between the early-medieval foundation and later residential expansions.
Cisy Castle is a 13th-century defensive fortification situated on a steep rocky hill overlooking the Pełcznica River gorge. It was originally built during the reign of Bolko I the Strict to secure the border of the Duchy of Świdnica. The ruins consist of an upper castle with a residential tower and a lower castle protected by a curtain wall. The structure served as a regional administrative center before falling into disrepair following the Thirty Years' War. Currently, the site is maintained as a consolidated ruin accessible to the public for exploration. Its architectural layout reveals distinct stages of development, including late-medieval and Renaissance-era structural modifications. The castle remains a prominent example of the defensive system known as the 'Trail of the Eagle's Nests' of the Sudetes. The site is surrounded by the landscape of the Książ Landscape Park.
The elevated vantage point on the perimeter trail providing a panoramic view of the tower against the river valley backdrop.
Wear hiking boots with good grip as the paths around the ruin are steep and can be slippery.
Bring a flashlight to better explore the interior recesses of the ruined masonry.
Carry your own water and snacks as there are no amenities on the immediate site.
Do not attempt to access the ruins during or immediately after heavy rain due to steep, unstable terrain.
Accessible year-round, though paths may be blocked by snow or ice during winter months.
Respect the ruins by not climbing on unstable wall sections; leave no trash.
