iskar-panega geopark, along the zlatna panega river, bulgaria

autumn blue bridge bulgaria bulgarian called canyon cascade ecology ecotourism environment europe flora forest geology geopark gold gorge grass green hiking hill iskar iskarpanega karst lake landmark landscape location lovech lukovit moss mountain national natural nature outdoor panega panegaiskar panorama park plant reflection region river riverbank rock sky tourism touristic trail travel tree trip view water wooden zlatna