The Soča River, Slovenia. The Soča (in Slovene) or Isonzo (in Italian) is a river that runs through the west of Slovenia. and he north eastern part of Italy. The Soča River’s source lies in the Trenta Valley in northwestern Slovenia. The Soča River has some of the most beautiful bright turquoise water you’ll ever find around Europe.
Soča River is an alpine river in Slovenia’s only national park, Triglav and it’s probably the most beautiful river in Europe! At least that’s how we feel about it after spending a couple of days in Soča Valley this summer.