Public transport on the Danube
From 1st of July 2012, Budapest Transport Company (BKV) started 3 new shipline on the Danube.
And it's free with daily, weekly and monthly ticket on weekdays. On weekends all passengers need to buy ticket at the port. Ticket costs 400 HUF (cca. 1,4 €). Passenger under 6 and over 65 years old can aboard for free.
BKV started three lines, two for the weekdays, called D11 and D12, and one for the weekend, names D13. On weekdays ships set sail every 20 minutes.
First public steamships started on Danube in 1820 between Vígadó square and Óbuda. In the 1880's ships carried 4 million passengers per year. This number decreased to its third in 1920, and was 53,000 in the 1990's. Now BKV wishes these ships will be as popular as in their renaissance.
Timetable available here (only Hungarian for now): www.bkv.hu