Přesypy u Rokytna, Nature reserve near Rokytno, Czech Republic.

Přesypy u Rokytna is a nature reserve on the southeastern edge of Rokytno, protecting one of the best-preserved sand dune sites in the Polabí region. The dunes cover about 500 by 200 metres south of the 254.5 m contour, with a central ridge 250 metres long and 15 metres high, planted with pines and partly colonised by black locust and red oak.

The sand dunes formed in the Late Pleistocene or Holocene, and by 1950 they still reached north into the centre of Rokytno. That northern part was later destroyed by building development, leaving the dunes south of the 254.5 m contour. The site is now managed by the Czech Agency for Nature Conservation and Landscape Protection.

The name Přesypy u Rokytna refers to the sand dunes by the village of Rokytno; most of the dunes that in 1950 still reached the village centre were later destroyed by building. The remaining dunes were planted with pines, and black locust and red oak spread on their own. The pine monoculture on the sand is close to the natural state.

The reserve lies on the southeastern edge of Rokytno, south of the 254.5 m elevation point; the sandpit surface at its northeastern belt is largely reclaimed. The dunes are wooded, so expect sandy, uneven ground under the pines. The site is managed by the Nature and Landscape Protection Agency of the Czech Republic.

Most of the dunes once reached north into the centre of Rokytno, but the larger part was destroyed by building development; only the southern edge survives. The central ridge measures 250 metres long and 15 metres high.