High barren dunes fringe the southern outskirts of Nida. The 52m-high Parnidis dune is the last shifting dune of the isthmus and may be climbed by steps reached along the shoreline (those in a hurry can drive to them). From the top, there is a lovely view over Nida, the lagoon, the sea and the "Lithuanian Sahara" extending along the barbed wire marking the frontier with Kaliningrad. This is a fragile habitat (rare flora and shifting sands) so stick to the marked paths.