Blue Lagoon 1 ounce dark rum 3/4 ounce blue Curaçao 2 ounces light rum 1 1/2 ounces pineapple juice 1 1/2 ounces orange juice 2 1/2 ounces sour mix 1 1/4 ounces orgeat syrup Crushed ice 2 lemon slices Blend liquors, juices, sour mix and syrup in a blender. Fill two 12-ounce glasses with crushed ice and pour blended liquid over ice. Garnish with lemon slice. Serve with straws.