Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Nzira: Nzizi dzePoland dzave dzichishandiswa pakufamba nengarava kubvira kare. VaViking, somuenzaniso, vakafamba vachiyambuka Vistula neOder vari mungarava dzavo refu. MuMiddle Ages uye munguva dzekutanga dzemazuva ano, apo Polish-Lithuanian Commonwealth yaive tswanda yezvokudya zveEurope; kutumira kwezviyo nezvimwe zvigadzirwa zvekurima pasi peVistula yakananga kuGdańsk uye mberi kune dzimwe nzvimbo dzeEurope yakawana kukosha kukuru.Mumupata werwizi rwePilica muTomaszów Mazowiecki kune yakasarudzika karst chitubu chemvura ine calcium munyu, inova chinhu chinodzivirirwa muNiebieskie Źródła Nature Reserve muSulejów Landscape Park. Kwakatangira zita renzvimbo inochengeterwa Niebieskie Źródła, zvinoreva kuti Blue Springs, kunobva pakuti mafungu matsvuku anodyiwa nemvura uye bhuruu neruvara rwegirini chete ndizvo zvinoratidzwa zvichibva pasi pematsime, zvichipa ruvara irworwo rusina kujairika. MuEurope, Finland chete ndiyo ine madziva akawanda kudaro. Madziva makuru, anofukidza anopfuura makiromita 100 akaenzana, iLake Śniardwy neLake Mamry muMasuria, uye Lake Łebsko neLake Drawsko muPomerania.  Mubvunzo: VaViking vaifamba nei?
ngarava refu