01 - Place the diced mango, sliced cucumber, banana, coconut water, and fresh lime juice into a blender.
02 - If desired, add honey or agave syrup for extra sweetness along with the ice cubes.
03 - Blend on high speed until the mixture is completely smooth and creamy, approximately 30 to 60 seconds.
04 - Taste the smoothie and adjust sweetness by adding more honey or agave syrup if needed, then blend briefly to incorporate.
05 - Pour the smoothie into glasses and serve right away for the best flavor and texture.