Budapest service in and around Budapest, three lines of which are operated under the name HÉV. The river Danube flows through Budapest on its way from Germany to the Black Sea. The river is easily navigable and so Budapest historically has a major commercial port at Csepel District and at New Pest District also. The Pest side is also a famous port place with international shipping ports for cargo and for passenger ships. In the summer months, a scheduled hydrofoil service operates on the Danube connecting the city to Vienna. BKK (through the operator BKV) also provides public transport with boat
Budapest a long island south from Budapest. District XXII is still on the same route in southwest Buda, and finally District XXIII is again in southernmost Pest, irregular only because it was part of District XX until 1994. Budapest is the most populous city in Hungary and one of the largest cities in the European Union, with a growing number of inhabitants, estimated at 1,742,000 in 2014, whereby inward migration exceeds outward migration. These trends are also seen throughout the Budapest metropolitan area, which is home to 3.3 million people. This amounts to about 34% of Hungary's population. In 2014, the