Combine water and sugar in a small saucepan. Bring to a boil, stirring the sugar to dissolve. Add the cranberries, lower heat, cover and simmer for about 5 minutes. Turn off heat, drop in the mint leaves. Let it cool in the refrigerator. Strain.
Make the Cocktail:
In a pitcher or tall glass, muddle the mint, lime, and simple syrup. Stir in the cranberry pomegranate juice, lime juice, and rum. Add the ice and top with ginger ale. Stir again, and garnish with mint and kiwi. Cheers!