Add the fresh pineapple chunks, coconut water, and ice cubes into your blender.
Blend everything on high speed until the mixture is smooth and frosty, about 30-45 seconds. The ice should be fully crushed and the drink should feel icy and cold to the touch.
Sprinkle in the fresh pineapple zest and give the mixture a brief pulse to incorporate the zest evenly—just 2-3 seconds.
Pause briefly to check the consistency; the drink should be thick, icy, and resemble a slushie. If it’s too thick, add a splash more coconut water and blend again.
Pour the slushie into chilled glasses, allowing the icy texture to settle slightly on top with a frosty appearance.
Serve immediately with a straw or spoon, enjoying the cool, vibrant flavors and refreshing texture.