Instructions
- Bring 3 cups water and sugar to boil in large saucepan over high heat, stirring until sugar dissolves.
- Boil 3 minutes.
- Transfer syrup to bowl; cover.
- Chill until cold, at least 3 hours and up to 1 week.
- Mix lime juice, orange juice, 3 cups syrup, and 3 cups water in large pitcher (Can be made 1 day ahead. Cover and chill).
- Fill glasses with ice.
- Pour cooler over.