Peel the mango and cut it into cubes.
Add it to a blender along with the pineapple, banana, and coconut milk.
Add the lime juice and sweetener, then blend until completely smooth.
If needed, you can add more ice or a little water to reach your desired consistency.
Serving: Pour into glasses, then garnish with mango or pineapple pieces.
For an extra refreshing effect, add a few mint leaves while blending.