Method

1. In a cocktail shaker, add 1 shot of gin, 4 fresh mint leaves, 5 cucumber slices, 15mL of fresh lime juice, and 1/2 cup of fresh watermelon chunks.
2. Fill the shaker with ice to the top, seal it, and shake vigorously for about 10-15 seconds to chill andblend all the ingredients.
3. Prepare a chilled glass filled with ice, and add the strained cocktail mixture. Top off the glass with sparkling water and stir gently to combine the ingredients.
4. Garnish with a fresh mint sprig and a slice of watermelon.