Romania is the largest country in Southeastern Europe stretching as much as 238,391 square kilometres. A large part of Romania's border with Serbia and Bulgaria is formed by the Danube. Prut River, one of its major tributaries, forms the border with the Republic of Moldova. The Danube flows into the Black Sea within Romania's territory forming the Danube Delta, the second largest and the best preserved delta in Europe, and a biosphere reserve and a biodiversity World Heritage Site.
The resorts along the Black Sea cost offer variety of water sports and the largest Aqua Park on the Black Sea coast is to be found in Mamaia.
Summersin Romania are generally very warm to hot, with summer (June to August) average maximum temperatures in the lower part of the country being around 28 °C (82 °F).
