This nature park is located in the most distinct part of the Dagda hillocks of the Latgale highlands. Part of it is the deepest lake in the Baltic States -- Lake Drīdzis, which is 63.1 metres deep and has nine islands. Also there is Lake Otis. The loveliest views can be watched from the ancient Lettigalian castle hill that is known as Sauleskalns, and from the eastern shores of Lake Drīdzis. Accommodations are available near the lake.

The shallow and mostly overgrown (65% of its surface) Lake Engure is one of those Latvian lakes which are most favoured by birds. It is a location which is governed by the Ramsar Convention on Wetlands, and 186 species of nesting birds have been identified there. The area is also distinguished by great botanical diversity (more than 800 kinds of plants). The coastline varies between sandy beaches and seashore meadows. There are forests, fishing villages and damp areas which ensure a great diversity in landscapes and species. The flood-land plains of the lake and the sea are grazing grounds for wild livestock – horses, blue cows, etc. Several bird-watching towers are open to visitors, as is the Orchid trail. The Centre for Ornithological Research is located on the eastern bank of Lake Engure. A unique floating house built by ornithologists is located on the lake. The territory is appropriate not just for holiday-makers, but also for hikers, bicyclists and bird-watchers. A leisure area and a small exhibition are located close to the ornithological research centre.

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.

Науенское городище находилось на крутом правом берегу долины Даугавы на высоте 25 м, между двумя оврагами. Под руководством магистра Ливонского ордена Эрнеста фон Раценбурга в 1275 - 1277 гг. на месте прежнего латгальского деревянного замка возводится каменный замок. До середины XVI века замок служит резиденцией комтура Динабурга. В 1577 году войска Ивана Грозного полностью разрушили замок. После этого события Динабург теряет свое стратегическое значение, и строительство новых укреплений начинается в том месте, где сейчас находится Даугавпилс.Рядом с развалинами замка ордена установлен уменьшенный макет замка. С места автостоянки до городища можно дойти по тропе. С городища открывается один из красивейших видов на изгибы Даугавы.