Tours is a mid sized city, whereas Amboise is one of those charming small towns of France. Both make for great departing points to visit the Loire Valley Castles or Loire Valley vineyards.ToursThe city of Tours is a pleasant town to stay in. Like all cities of France, it offers a wide range of attractions and sightseeing opportunities. It also possesses a large number of bars & restaurants for those of you wishing to experience local delicacies or wish to have a drink in the evening. Since Tours has a large University, the student population is important and the evening ambiance can be quite festive.AmboiseThis charming small town is famous for its castle that overlooks the Loire River. The population is less than 15 000 but in the summer months of July & August this can be multiplied by 2 due to the high number of French or foreign tourists that stay in town. Since this is a small town, the number of sightseeing options are not as important as in Tours and the number of restaurants is more limited. The town tends to ' fall asleep' past 9.00pm. Your choice will really depend on the time of the year you are traveling and what exactly you would like to do on your evenings. If you want to travel far from the crowds then avoid Amboise in the summer months, Tours will be much more accessible with all the students having left and most French on holiday. If you want to visit major landmarks...