view of vacha river on nice summer day rhodope mountains bulgaria

bulgaria cascade destination electric electrical energy environment environmental facility fishing generate hydro krichim landscape mountains nit reservoir rhodopes ridge river riverbed south travel vacha view volume water summer gorge beauty summit green creek europe bulgarian picturesque landmark history historic stone beautiful fish sightseeing country countryside nature donkey thorn peace peaceful tranquil idyll idyllic wild flowers medical plant plants donkey#39aph39#s thistle milk