1. We plan to go on two day trips (to Telc and to Český Krumlov) from Prague (by public transport) in July. It is possible to order online. Is it essential? Are seats numbered? Might they run out or can we order a day or two in advance once in Prague? Same question for the Terezin concentration camp.
2. We want to see an opera on a certain date but would prefer to book and pay on arrival in Prague 5 days before the performance date, rather than by credit card online. Are we risking all tickets being sold out, do you think?
Thanks in advance!