There's a pontoon bridge accessible only to pedestrians and cyclists just south of the Austrian-Czech-Slovak three country border, between Hohenau an der March (Austria) and Moravský Svätý Ján (Slovakia). The way goes through flat countryside, is very calm and can be conveniently done by bike. Its length is approximately 6 kilometers, of which the 4 kilometers on the Slovak part are a completely straight invariable landscape which may feel somewhat boring.
The urban traffic company of Bratislava (DPB) runs a cross-border bus line no. 901 between Hainburg an der Donau (Austria) and Bratislava (Slovakia), with a stop also in the Austrian town of Wolfsthal. In Bratislava, the terminus is the stop Nový most.
There's a pontoon ferry accessible to car-drivers and pedestrians between Angern an der March (Austria) and Záhorská Ves (Slovakia). Open from five o'clock to twenty two o'clock.