aerial
aerial view
antonivanovtsi
antonivanovtsy
balkans
bulgaria
canyon
cascade
dam
devin
drone
engineering
environment
europe
forest
gorge
hill
hydro
hydroelectricity
krichim
landmark
landscape
meander
mountain
natural
nature
panorama
peninsula
plovdiv region
power
reservoir
resource
rhodope
rhodopes
river
rodopi
scenery
scenics
terrain
tourism
travel
tree
vacha
vacha dam
vacha reservoir
vacha river
view
water
wilderness