Aptuveni 0,5 km dienvidos no Mežotnes pilskalna atrodas Vīna kalns, kas līdzīgi kā Mežotnes pilskalns, ir veidots, izmantojot Lielupes ielejas stāvās krastu nogāzes, tās pārveidojot. Vietvārds ir it kā radies no stāsta, ka šeit parādījies dievgalds ar maizi un vīnu. Vīna kalnu ar Mežotnes pilskalnu savieno jauka koka laipa, kas ved pa Lielupes ielejas pamatkrasta lejas daļu.

Viena no augstākajām Latvijas celtnēm ar vienu no augstākajiem skatu laukumiem (65 m). Paveras izcila Vecrīgas un Rīgas ainava, kā arī Daugavas (līdz Rīgas HES dambim) un Pārdaugavas skati. Labi redzami blakus esošie Rīgas centrāltirgus paviljoni.

One of the highest dunes in Latvia, located between Bernāti and Jūrmalciems villages. It is 37m high and offers a magnificent view of the sea and natural pine forests. The highest dunes in Latvia stand to the South of Jūrmalciems village: the Pūsēnu hill, the Ķupu hill, the Mietragkalns or Tiesas hill, the Pāļu hill, the Garais hill, the Ātrais hill, the Lāvas hill. The Pūsēnu dune is the highest of these dunes which are all called hills by the local people. The Pūsēnu hill developed between 1785 to 1835 when shifting sand became extremely dangerous. Several homesteads were buried in sand, among them „Pūsēni”, where a forester’s family lived. The family is said to have moved to Bārta. The dune was named after the buried homestead.

Jēkabs Janševskis, a Latvian writer, wrote in his book „Nīca”: “In olden times, large pine trees were growing in the dunes on the coast of Nīca and they stood steady and firm. But i Swedish times (around 1650), the Swedes built a large kiln for charcoal and tar. Pine wood and stumps provided an excellent material for this. Once a big fire rose, and the charcoal kiln burned down as well as the whole pine forest. The remaining stumps and bare trunks in the vast burnout could not hold the storm-driven sand; it flew further and further burying not only the burned-out forest, but also the nearest fields. In wintertime, when the vast, low marshy grasslands were covered with ice, jets of sand drifted further over its surface, and soon most of the grasslands and large meadows turned into sandy heath-land and dunes.”

To reconstruct Liepāja, severely damaged during WWII, a silicate brick factory was built in the town. The main raw material was white sand and it was taken from the Bernātu forest. In the 1960-ies they started to dig off the Green Dune and the White Dune, later also the Pūsēnu hill. The excavators used to work day and night, in three shifts. The work stopped at around 1980, as there was no more sand suitable for production of brick.

A trail is set up to facilitate walking in the Pūsēnu Dune in the Bernātu Nature Park.

A beautiful part of the Rēzekne-Dagda-Krāslava road – along two km or so, you can see Lake Rāzna and Mākoņkalns hill, which is 10 km away on the other shore of the lake.