The Danube is a very calm river. You can't just rely on current to drive a boat, as it mostly doesn't exist. The Danube river is navigated by sailing enthusiasts who prefer a calm river, not fast and rushing, not with difficult and steep descents. The origin of his name, like all today's etymologies with political-ideological linguistic influences, starts like: whose name was known to the ancient "Greek" as Istros (Ἴστρος) from a root that can also be found in the ancient name Danaster in Latin , and is thought by modern linguists to come from PIE *isro-, *sreu 'to flow'. They also connect it with other names such as Tyros, Tiras, etc. which, in my opinion, are not related to Istros and Danastër. Romanian differs from other surrounding languages in designating the river with a feminine term, Dunărea (IPA: [ˈdunəre̯a]). This form is thought by some linguists not to have been inherited from Latin, although Romanian is a Romance language. To explain the loss