We are planning to visit the Loire valley after the 20th September from Paris by train. We will not be hiring a car as we have just 2 nights to spare. I was thinking of doing a half-day chateau tour with one of the companies. The question is: do I stay in Tours or Amboise? Being that time of year, I guess Amboise wont be too crowded but not sure if it's difficult to get to by public transport from Tours? Also, what would be the best time of week to visit- weekdays or a weekend. I guess transportation will be tough on a Sunday. We want to stay in a nice chateaux-type accommodation and just relax in the countryside, so don't really need too much to do, just some places to eat and drink. Also would like to go to Vouvray for some wine-tasting.
Any suggestions at all?!