The Danube delta is a young, barely 5-7,000-year-old formation: today it is the part between three Danube branches and the Razelm-Golgovita-Zmeica-Sione lagoon complex located south of it. The northern Chilia branch is the largest: it is 116 kilometers long, flows into the sea at several estuaries, and is also a border river between Romania and Ukraine. The branch bearing the n...