Nothing beats a refreshing cocktail on a warm spring or hot summer night. Treat yourself to this wildly delicious concoction of light rum, sparkling water, and ginger passion fruit syrup. You can easily mix up a big batch of the Passion Fruit & Ginger Cocktail to serve a crowd. Omit the alcohol and you can serve it to the kids, too. Substitute tequila or vodka for the rum to achieve the same great taste, and garnish with fresh lemon and mint to create the perfect poolside drink.