Couple two awe-inspiring river gorges into a spectacular nature outing in Slovenia.In Tolminska Korita, an off-the-beaten-path gorge at the southern corner of Triglav National Park, walk along gravel trails to a stunning moss-covered, narrow gorge, and climb to the Devil's Bridge to admire it from high up. The more popular Vintgar Gorge boasts impressively high rock formations and a breath-taking emerald green river. Those who go all the way will be rewarded with a sight of the roaring Sum Waterfall, the highest, and one of the most beautiful in Slovenia.