Two of us plan a walking trip (*maybe* some biking) along part of the Czech Greenways trail in S. Moravia, during the last week of May. We hope to stay in villages & the smaller towns in little B&Bs or private homes but can't really predict exactly the days we'll be in any particular place. I'd like to hear from others who have tried this -- how likely are we to find places without advance reservations? I have some basic knowledge of Czech so am not worried about communicating our needs. Thanks for any helpful advice.