Housle

Housle is a small but striking nature monument at the western edge of Lysolaje, within Prague 6. Covering just 3.8 hectares, this protected site packs a surprising amount of drama into a compact space — a deep, narrow gully that looks almost like a fantasy-film canyon, though it was shaped entirely by natural erosion.

What will you see there?

The centerpiece of the reserve is a deeply cut ravine roughly 250 metres long and 20–30 metres deep, carved by water into sandstone bedrock. The gully walls expose a notable geological profile, with Upper Cretaceous marine deposits resting on much older Proterozoic rock. It was precisely this rare geological record, combined with the site's role as a refuge for insects and other small animals, that led to its protection as a nature monument in 1982. The area sits at an altitude of 290–310 metres, and its shaded, winding path contrasts with the sunlit, open slopes surrounding it.

How do you get there?

Housle lies west of the Lysolaje public transport stop, from which a blue-marked hiking trail runs through the reserve, connecting Dolní Šárka with the Church of St. Matthew. Getting there from central Prague by public transport typically takes fifteen to twenty-odd minutes, and walking through the gully itself is an easy route suitable for visitors of any fitness level.

What is the educational trail about?

An educational trail with ten stops was built here in 2012. Among its stations is the so-called Miraculous Spring (Zázračná studánka), along with points named the Garden and the Theatre — names that reflect the character of different sections of the gully and the vegetation growing along them. Information panels along the way explain both the site's geology and its natural and historical significance.

When is the best time to visit?

The reserve can be visited year-round, but spring and autumn are especially pleasant, when the gully stays cool and the vegetation on its slopes is at its most picturesque. In summer, the shade of the trees and the moist floor of the ravine offer welcome relief from the heat, making Housle a good choice for a short, quiet walk away from the bustle of central Prague.

Frequently asked questions

How large is the Housle reserve? It covers an area of 3.8176 hectares, with the gully itself running about 250 metres long and 20–30 metres deep.

When was Housle protected? It was declared a nature monument in 1982, owing to its exceptional geomorphological value and its role as a refuge for animals, especially insects.

Is there an educational trail on site? Yes, built in 2012, it has ten stops, including the Miraculous Spring, the Garden, and the Theatre.

How do you reach the reserve? The easiest way is on foot from the Lysolaje stop, from where a blue-marked trail leads towards Dolní Šárka and the Church of St. Matthew.