An unusually attractive tourist and holiday area of the Bohemian Paradise. Here in the 16th century, people built a system of ponds from the valley floodplain and the marshes to utilise the territory economically and today, it forms a space of extraordinary scenic and natural value. The unique canyon valley is bordered by sandstone cliffs and these also often form the shores of the ponds.
We count eight of them: Vidlák with a restaurant, parking lot and campsite; Krčák; Rokytnický and Hrůdka; the shallow Dolský, Podsemín and two of the most sought after „swimming holes“ – Nebák and Věžák. The pond Věžák is located in an exquisite valley and thanks to this appealing location it has been selected several times as the backdrop for family film shoots (e.g. „Jak dostat tatínka do polepšovny“ [How to Get Dad into an Approved School]). Nature preserve Podtrosecká Valleys protects the most extensive complex of marsh isotopes in CHKO Český ráj (The Bohemian Paradise Protected Scenic District).