I have a Schengen visa which is valid between October and November 2017, with "allowed duration of stay in Czech Republic up to 16 days."
I wish to stay longer in Czech Republic for another week. There is a big design festival organised and I want to check it out.
Would it be possible to fly out of the Czech Republic for a day or two and then back to Czech Republic to stay longer than 16 days stated in the visa?