Also known as Lake Jēsis or Lake Iesis, this is the lake in Latvia which has the largest number of islands.  Many literary sources and encyclopaedias in the 20th century claimed that there were 69 islands in the lake, but that was an exaggeration, because apparently the authors took sandbars overgrown with reeds and other plants to be islands.  The true number is approximately two times lesser.  The largest number of islands can be found in the north-eastern part of the lake.  The largest one is Lielā Lāča (Big Bear) Island (45 ha).  A farm was on the island at one time.  The islands and the oak trees that are on the shores of the lake – the Piļoru and Pahatnīku stands of trees – are in a restricted environmental reserve.

Ārkārtīgi ainaviska teritorija Augšzemes augstienes centrālajā daļā ar vairākiem ezeriem - Medumu, Lielo un Mazo Ilgas, Šķirsteņu un dažām mazākām ūdenstilpēm. Medumu ezera salām ir dabas lieguma statuss. Teritoriju šķērso vairāki grantēti ceļi, no kuriem dažviet paveras brīnišķīgas, bet nelabiekārtotas skatu vietas. Teritorijā atrodas Medumu katoļu baznīca. Piemērota teritorija dažādu aktīvā tūrisma veidu attīstībai. Dabas parks ietilpst Augšzemes aizsargājamo ainavu apvidū.

This is a comparatively large lake (3 km long and 1.3 km wide).  It is shallow (no more than 1.1 m deep) and is classified as a seashore lake.  The Vecslocene River flows through it.  At the southern end, there is a narrow stream which connects Lake Sloka with Aklo Lake – a shallow and small lake with a dolomite bed at some locations.  The best view of Lake Sloka can be seen from the bird watching tower on its north-western shore.  This is the only floating bird watching tower in Latvia.  Alongside it is the beginning of the 3 km Lake Sloka hiking trail, which passes through the flooded wetlands of the lower reaches of the Vēršupīte.  An information stand can be found on the shore of Lake Sloka by the car park.  Beyond it is a sulphurous spring.

Lake Salājs is full of bays and islands.  Alongside Lake Little Solojs, which is next to Lake Salājs, is the Milka castle hill and a leisure facility there.  This is a beautiful area, and it is protected for environmental purposes.

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.

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.

Lake Liepāja is shallow and eutrophic (around 40%), and it is one of the most important lakes on the shores of the Baltic Sea for nesting and migrating birds (resting and feeding place). More than 100 different species of birds have been spotted there. The lake is no less important for plants which flourish in salty biotopes. On the north-eastern shore of Lake Liepāja (Vītiņu meadow) there are flood-land plains which are the home to domestic animals which have been adapted to life in the wild. There is also a viewing tower, available upon request with the guide. The system of dams along the south-western part of the lake can be hiked or biked (extreme!) to find lots of interesting viewing areas and landscapes. In the surrounding of the lake there are ruins of unique former fortification systems.

Dabas liegumā ietilpst divi aizauguši ezeri ar grūti pieejamiem krastiem - Lielais un Mazais Asūnes ezers, kas atrodas dienvidos no Asūnes ciema. Abus ezerus var vērot, atrodoties ārpus lieguma teritorijas - no blakus esošo pauguru augstākajām daļām, kas atrodas austrumos no abiem ezeriem. Ja līdzi būs paņemts tālskatis, iespējams, izdosies iztālēm novērot šeit esošās aizsargājamās putnu sugas, piemēram, melno zīriņu.