A view of the Kazan Gorge from a ship cruising on the Danube River between Serbia and Romania, Europe

beauty in nature blue sky blurred motion color image cruising danube river day environment europe fog hillside horizontal kazan gorge landscape motion mountainside nature nobody ocean outdoors photography romania scenic view sea serbia ship sunny travel travel destinations view water boat color colour cruise daytime european hill mist montenegro movement outside podgorica romanian scene scenic sky south east europe southern european sunshine trip