One great low-calorie summer cocktail to try is the blueberry-lime margarita. This frozen deliciousness only contains 125 calories per serving.
To create this cocktail simply combine ice, blueberries, blueberry nectar, seltzer, limeade, lime juice and tequila, if using, in a blender and blend until smooth.
Rub the rim of 2 glasses with lime wedge and dip in salt.
Divide the margarita between the prepared glasses and serve.