01 - Fill two old-fashioned glasses to the rim with crushed ice and set aside.
02 - Combine orange juice, pineapple juice, lime juice, orgeat syrup, and simple syrup in a cocktail shaker. Shake vigorously for 10-15 seconds until thoroughly chilled and blended.
03 - Strain the mixture evenly over the ice-filled glasses, dividing between both servings.
04 - Slowly pour grenadine into each glass, allowing it to settle at the bottom for a striking layered presentation.
05 - Place an orange slice and maraschino cherry on the rim of each glass, then top with a fresh mint sprig.
06 - Serve promptly with straws while the drink is thoroughly chilled.