Daugavpils
official site of the resort: http://www.daugavpils.lv/City Daugavpils (Latvia)
Daugavpils, also Dvinsk, is a Latvian city on the Daugava river (Western Dvina), near the border with Lithuania (25 km) and Belarus (33 km), It is the second biggest and the second important city of Latvia after its capital Riga.
It was founded in 1275.