Combine the following in a shaker with ice.
1/2 oz. Light Rum
1/2 oz. Gold Rum
1/2 oz. Dark Rum
1/2 oz. Coconut Liqueur(Malibu is good)
Mix well and strain into the glass.
Fill 1/2 with orange juice & 1/2 with pineapple juice
Fill a Collins glass with crushed ice.
Top with a splash of grenadine
Garnish with a Cherry & Pineapple Wedge