Puree watermelon using a blender or mortar & pestle, and then strain pulp.

Fill (2) glasses with crushed ice.

Pour 0.5 c watermelon juice into each glass.

Squeeze the juice of one lime into each glass.

Add 1.5 oz California Gin to each glass.

Top off with Ginger Ale and stir well.

Garnish with lime wedges and enjoy!