Place 4-5 cups at a time of cubed watermelon in a blender. Blend until smooth. Pour into a mesh strainer that is over a bowl.
Continue blending and straining watermelon until you get 5 cups juice.
Add strained watermelon juice back to blender then add frozen limeade and mint. Blend until smooth. Serve immediately over ice.
Notes
This will start to separate a little after blended which is ok. A quick stir will mix it right back up!This makes for yummy popsicles! Just pour into molds and freeze.