This circular trail features a unique landscape of parallel rampart-type sand dunes and grassy swamps among the dunes. The 3.5 km trail leads through a landscape that is unique in Europe and emerged some 6,000 years ago as the sea was receding. This landscape offers evidence of the geological history of the Baltic Sea. There is a high-type swamp (the Pēterzers swamp), along with remnants of an old narrow-gauge railway. Wooden pathways have been installed along the swamp and the surrounding wetlands. 

Reinis Kaudzīte, co-author of the first Latvian novel “Times of the Land-Surveyors” (“Mērnieku laiki”) stayed in Pēterupe Village from 1913. 
In 1913 R. Kaudzīte bought a small property (currently No. 17 School Street), where he spent the last years of his life along with the lady of the house Karlīna Damroze. After the death of R. Kaudzīte, Karlīne – the well-known and respected midwife – continued to run the household. During Soviet times, the house was converted into a residential building. The neighbouring garden-house also acquired the status of a one-room flat, which in 11 August 1991 was turned into the Public Museum of Saulkrasti History. In 2008 the basic idea of the museum was changed and the house underwent redecoration. Now the museum is dedicated to the life of Reinis Kaudzīte in Pēterupe. The exhibition consists of furniture, crockery, household items, tools, photographs and other items of the early 20th century contributed by Saulkrasti residents. 
“Neighbour’s bench” and a signpost with references to places where the writer once travelled to are located in the garden by the building.

In einem in der zweiten Hälfte des 19. Jh. errichteten Gebäude befindet sich eine Sammlung vom Limbažu-Museum und das Touristeninformationszentrum. Blick auf die Altstadt vom Turm (der glässerne Boden).

Krustpils was first recorded in documents in 1237 in relation to the construction of the Kreutzburg castle on the right bank of the Daugava River.  A 1511 document lists it as a village.  In 1585, Polish King Stefan Báthory gifted the town to Nicholas Korff, whose family continued to own it until 1920.  Battles between Swedish and Polish forces occurred outside of Krustpils in 1626, and the sacked village was in poor shape until the mid-19th century.  Jēkabpils, in turn, was constructed as a settlement for Old Believers who were persecuted in Russia.  The Daugava has rapids opposite Krustpils and Jēkabpils, which means that boats had to dock there and reload their goods into wagons.  The settlement flourished, and in 1670 it was given the rights of a city.  It is named after Duke Jacob.  When the Rīga-Daugavpils rail line opened in 1861, Krustpils flourished, and Jēkabpils did not flourish.  The two cities were administratively merged in 1962, keeping the name of Jēkabpils.  There are typical one-story wooden buildings from the 19th century, red brick buildings built at the turn of the 20th century, as well as seven churches used by different denominations.  The dam along the left bank of the Daugava was built in 1861, and it was aimed at protecting the city against flooding.  Today it is a promenade that is popular among local residents for strolling and leisure.

The first part of this section of the Forest Trail winds along the magnificent River Piusa valley, then, at Härmä Village, it turns towards Obinitsa, an important cultural centre of Setomaa, the Land of Setos. Here you can discover the traditions of the local Seto people, for example the fine handicraft of the Seto women. After Obinitsa, the Forest Trail leads through beautiful pine forests rich in heather, descends back into the depths of the River Piusa valley and ends at the Piusa caves. The Piusa sandstone caves are the result of hand-mining glass sand from 1922-1966. The biggest wintering colony of bats in Eastern Europe is located in the caves. When accompanied by the guide, you can visit the observation platform at the Museum cave.

Accommodation in a country house for up to 40 people (with extra beds). Sauna and bathhouse services, party room, outdoor recreation - swimming in ponds, fishing, sports and recreation grounds. The hosts offer to taste dried fish or fish soup, also from your own catch. There are 17 fish ponds for fishing.

In "Paradises" it is also possible to organize celebrations in the open air, as well as to spend the night in tents.

Found on the right bank of the Daugava where the little Karikste river flows into the Daugava, all that remains of the castle today is a set of ruined walls and foundations.  The castle was built by the Livonian Order in 1224, and it was inhabited until the mid-17^th century, when it was sacked during the Polish-Swedish war.  The ruins offer a good view of the local gravel road that goes along the right bank of the river valley.