This refreshing drink is served by roadside vendors all over Mexico. Not too much fruit, not too much sugar, just a beautiful way to quench your thirst on a summer day.
- Combine half the watermelon, half the water and half the sugar in a blender; puree. Pour through a coarse strainer into a large container. Repeat with the remaining watermelon, water and sugar. Stir in lime juice. Refrigerate until well chilled, about 4 hours.
- To serve, stir in club soda (or seltzer) and garnish with lime.