The valley historically served as a timber transport route for the local glassworks operating in Harrachov since the early 18th century.
The riverbed features significant granite boulders and potholes scoured by glacial meltwater.
During winter, the path is often groomed as part of the regional cross-country skiing trail network.
Anenské údolí, known as Ann Valley, is a scenic forested gorge situated along the Mumlava River in the Krkonoše National Park. The trail serves as a sheltered walking route connecting the town of Harrachov with the popular Mumlava Waterfall. It is characterized by its accessible, relatively flat terrain that runs parallel to the riverbed. The area is heavily wooded, providing natural shade and a cool microclimate throughout the summer months. It acts as a primary entry point for hikers heading toward the higher mountain ridges of the Giant Mountains. Interpretive signage along the path provides historical context regarding the region's glassmaking heritage and forestry industry.
The wooden footbridge crossing the Mumlava River offers a balanced view of the forest canopy and river rapids.
Wear sturdy, waterproof footwear as the valley path can remain muddy long after rainfall.
Carry a windbreaker, as the temperature in the shaded gorge is consistently lower than in the town center.
Check local mountain rescue signage at trailheads for current path conditions before starting your hike.
Do not attempt to swim in the Mumlava river as the water is extremely cold and the currents around the boulders are deceptively strong.
Open year-round, but sections may be temporarily inaccessible during spring snowmelt or extreme flood alerts.
Stay on marked trails to protect the fragile Krkonoše National Park ecosystem and refrain from picking wildflowers.
