Step 1

In a medium saucepan combine the cherries, sugar, and 3 cups water.  Simmer for 15 minutes.  Cool to room temperature. Run through a fine mesh strainer.

Step 2

Juice enough lemons to make 1 1/2 cups of juice.

Step 3

Combine the cherry juice, lemon juice and about 5-6 cups chilled water (to taste).  Stir to combine and if desired add thin slices of lemon and fresh cherries.