In a high-speed blender, combine frozen orange juice, frozen pineapple juice, coconut water, and coconut extract. Blend on medium speed for about 30 seconds, or until the mixture is completely smooth and creamy without any lumps.

Next, add a generous amount of ice to the blender, covering the liquid mixture adequately. Blend on high for another 30-45 seconds until the ice is fully crushed and achieves a slushy consistency.

Carefully pour the smooth mixture into tall glasses, filling them about three-quarters full. Drizzle grenadine along the inside edge of each glass to create beautiful layers.

Garnish each drink with a slice of pineapple on the rim and a cherry placed on top. Your tropical treat is ready to serve!