The gorge of the Erma River August 10, 2017August 20, 2017Summer in BulgariaTagged Erma, river, Tranby admin Beauty to be seen The gorge of the Erma River is located 3.5 km north of Tran. Nature gives us unforgettable views. The special barbecues and children’s playgrounds make the Erma valley a favorite holiday spot. The noise of the river accompanies our every step. After every further turn, there is an even more beautiful view. The majesty of the beauty of nature Erma_5 Exciting is the passage through the tunnel dug by the Germans during the Second World War. Erma hut offers a wide choice of Bulgarian and Serbian cuisine.