Some might be celebrating the arrival of sun rays and Summer fashion, but not us. What we're really pumped about is watermelon season. And just when we thought nothing could beat sitting outside with a juicy slice of the fruit, we found these 15 cocktail recipes. These refreshing margaritas, citrusy sangrias, and sharp mojitos are here to change your life and make happy hour a hell of a lot happier this Summer. Look ahead and get ready to mix 'em up!