We are planning to travel from Krakow to Wroclaw, where we will probably stay for 2 nights. We are considering a day trip to Poznan if it's practical. We are wondering about the options for transportation. Is it fastest to take a bus from Krakow to Wroclaw? I think I read somewhere about Link-bus? Is there a bus that travels between Wroclaw and Poznan and if so, how long is that trip? Is Poznan worth a day's visit or would it make more sense to spend the time in Wroclaw? I believe I also read that Wroclaw to Prague is 5 hours by Polski Bus. Is that the best option and if so, where can we find a schedule and buy tickets? Most of our trip is planned with these last few days yet to figure out. I appreciate any suggestions.