The most refreshing summer beverage: Sparkling Watermelon Lemonade Hip Hip...It's watermelon season! It's basically the best late night snack in the Summer. A big bowl of cold watermelon from the fridge is the best! If you don't consume it all in one sitting, you should make this...sparkling watermelon lemonade. We've shared a bunch of watermelon ideas here, from popsicles to frozen watermelon lemonade, you really can't go wrong, but this drink is tops when it comes to refreshing summer drinks.