Eurovelo 6 Belgrade to the Black Sea

I plan to follow the Eurovelo 6 route along the Danube River from Belgrade to Constanta Romania.  Leisurely pace with time for sightseeing and photos.  Plan to stay in small hotels and BnBs, which are inexpensive in that area.  Similar past trips along Eurovelo 6 are described in my blog:  travels-with-jack.blogspot.com