© Carsten Steger · CC BY-SA 4.0ToplitzseeGrundlseeLake Toplitz lies deep in the Austrian Alps, 98 kilometres from Salzburg. It sits high in the Salzkammergut lake district, surrounded by steep cliffs and dense mountain forest. The lake’s water turns salty below twenty metres, so fish live only in the top eighteen metres. Below that, no oxygen remains, yet bacteria… večOdpri cilj
