Watermelon Mojito

1.5 oz White Rum
.5 oz Collins Sour Watermelon Liqueur
4 1-inch Cubes of Watermelon
Sprig of Mint
.5 oz Fresh Lime Juice
.5 oz Simple Syrup
Soda Water

Muddle watermelon and mint in shaker, add Rum, Collins Watermelon, lime juice, and ice and shake. Empty contents into highball glass and top with approximately 3oz of soda water.