Start by cutting ½ cup of ripe watermelon into small cubes, ensuring they are juicy and sweet. Next, gather two lime wedges and about three fresh mint leaves.

In a sturdy glass or cocktail shaker, add the cubed watermelon, lime wedges, and mint leaves. Muddle gently to release the juices and flavors.

Fill the glass with crushed ice to enhance the refreshing slushy texture.

Pour ginger ale or sparkling soda over the ice until the glass is nearly full.

Garnish with a slice of lime or additional mint leaves and serve immediately.