About 5km west of Kranjska Gora, signed just off the main road, is this idyllic nature reserve. It's the perfect leg-stretcher, with a short path to a turquoise-coloured lake that is the source of the Sava Dolinka River. You can easily walk here in about two hours on a path from Kranjska Gora via Podkoren and on to Rateče. These Alpine villages are notable for their medieval churches, rustic wooden houses and traditional hayracks.