The Tiefenbachklamm (Deep Brook Gorge) located near Brandenberg in Austria offers a beautiful wildly romantic scenery and crystal clear turquoise water. The brook is the 22km long Brandenberger Ache. The hike through the gorges takes about 2 hours in relaxed speed and a 3.5 - 4h round trip time. Free public parking and no entry fees makes it an attractive location, so come early or late. It is a rather easy hike following a largely secure path through the gorges with only some passages where you actually have to watch your steps. At the end of the gorge you will find a place to rest and refresh yourself. There had been a terrible accident back in 2007 where a mother and her daughter drowned after falling into the brook - keep that in mind.