Gallery 0 Results Reset All Close Delta do Rio Preguiças, Barreirinhas, Maranhão, Brasil. Maria Costa The Danube Delta is the second largest river delta in Europe, after the Volga Delta, and is the best preserved on the continent. Roxana Mihaela Banu The Danube Delta andrei marin Islands within the Delta del Paraná, near the Gaboto-Francisco port. Firpo Lacoste Aerial photograph of the flooded Tana River WIKIPEDIA by SGT R.A. WARD