aerial
aerial view
arda
arda river
balkans
beautiful
bulgaria
canyon
dam
environment
europe
fishing
forest
geological
gorge
hill
kardzhali
kardzhali region
landmark
landscape
majestic
meander
mountain
natural
nature
panorama
peninsula
reservoir
rhodope
river
rodopi
scenery
scenics
sight
sightseeing
studen kladenets
studen kladenets reservoir
terrain
tourism
travel
view
water
wilderness