You have several choices to get from Prague to Budapest, but a Sidetrip Tour in a comfortable, air conditioned minibus was the best bet for us. While normally a shared ride with up 4-8 people, we ended up on the tour on our own (although we had to pay the minimum fee, ie, for four pax). A safe, friendly driver, Sarka is well informed and speaks excellent English. Our stops in the wine town of Mikulov, at Lednice Castle, Bratislava and Gyur not only broke up the 525 km journey, but were picturesque and informative sights to see. We would recommend this option.