01 - Fill two old-fashioned glasses with crushed ice.
02 - Combine orange juice, pineapple juice, lime juice, orgeat syrup, and simple syrup in a cocktail shaker. Shake vigorously for 10-15 seconds.
03 - Strain mixture evenly over the ice-filled glasses.
04 - Slowly pour grenadine into each glass; allow it to settle for layered effect.
05 - Decorate each drink with orange slice, maraschino cherry, and mint sprig.