Rega (river)The Rega is a river in north-western Poland, flowing into the Baltic Sea. It is the country's 24th longest river, with a total length of 188 km and a catchment area of 2,767 km2.TownsThe following towns are situated on the Rega:TributariesThe following rivers are tributaries of the Rega:Brzeźnicka WęgorzaGardominkaMołstowa