The Watermelon Margarita is a fruity and refreshing cocktail that is perfect for hot days in Samui. It is made with tequila, lime juice, watermelon juice, and a touch of agave syrup. This vibrant and flavorful drink is often garnished with a watermelon wedge and a sprinkle of salt on the rim. It is a popular choice for those who enjoy a sweet and tangy cocktail.