Paris and Avignon: How to see watercolor paintings in museums and artists studio

<p>We would particularly like to find watercolor paintings in museums (from any era) and contemporary watercolors in artist's studios. </p> <p>We'll be in Paris for two days and then for four days in the Avignon area.</p> <p>Any ideas, leads, or possibilities? Do you know of associations of watercolor artists in France?</p> <p>Many thanks. </p>