First you have to find a syndicate and an insurance covering and allowing abroad trips - not all do for microlights, as this is still a national thing. If you do your flight prep correct and checked all the odds and bits of legal cross border microlight flying it is a piece of cake.
But one question came into my mind: did you ever had a training lesson in an aircraft? If you do your license, they will teach you a lot of things and one is --- when weather goes bad, take the train and because all airfields know that, almost every airport will have space to let planes sit there for some days (exceptions are usually mil places). So, is my assumption correct that the OP does not hold a pilots license (yet), or is microlight training so much less?