4 Cups Peeled Seeded And Cubed Watermelon
1/2 Cup Light Rum
1/4 Cup Fresh Lime Juice
1/4 Cup Triple Sec
Freeze watermelon in a shallow pan at least 6 hours.
Combine frozen watermelon, rum, lime juice, and Triple Sec in container of an electric blender; process until smooth, stopping once to scrap down sides.
Add enough ice to bring mixture to 5-cup level; process until smooth.
Repeat procedure, if necessary, until mixture measures 5-cups.