There isn't anything more refreshing than this combination of honeydew melon and lime juice. It's topped off with club soda, and just looking at the drink will cool you off.
In a blender, combine honeydew, lime juice, and mint. Cover and blend until smooth. Cover and chill at least 1 hour.
Pour about 2/3 cup of the melon mixture into each glass. Top off with club soda; stir gently. Serve immediately with additional mint.