Frozen NO ALCOHOL Watermelon Margarita

Makes 6 servings
a 3-pound piece watermelon (frozen overnight or at least a couple of hours)
1/2 cup fresh lime juice (from about 4 limes)
1/4 cup honey and water mixture (boil 2/3 cup of honey with 1/3 cup water boil and let cool over night) 
Sparkling Water (I poured in about a cup you can eye it) 
Mix all in a blender and you are ready to go!