Place the melon into a blender or food processor and blend on low speed until it resembles shaved ice.
Add the rest of the ingredients and blend. Add water and scrape down the sides when necessary.
Top with toppings of choice and enjoy.

350 gram frozen Spanish melon (or melon of choice)
1 fresh kiwi, halved
Handful of green or white grapes
Sweetener of choice, to taste
Water, as needed