In a rectangular, freezeable container, combine Vita Coco coconut water, the juice of small lime and simple syrup. Freeze for 1 hour, then break up using a fork.
Repeat the process 6 more times, scraping the mixture with a fork until fluffy. Half-fill a glass with chilled Woolies piña colada cooler, then top with coconut-lime ice and garnish with lime zest.