In a small saucepan, combine blueberries, sugar and water. Bring to a boil and lower the heat to a simmer for about 5 minutes. Allow to cool completely.
Whip cream until stiff peaks form. Fold in yogurt. Then gently fold in cooled blueberry mixture, you can leave it with streaks of color. Spoon into individual dishes or a bowl. Cover and refrigerate until serving.
Recipe by Crumbs and Chaos at http://www.crumbsandchaos.dreamhosters.com/2015/07/blueberry-lime-fool/