Pour 4/5 of the tonic water into a blue cocktail glass. Then pour in the rum.
Quarter the lime and add to the glass. Then slowly pour in the red cranberry juice. Sprinkle with the chopped mint leaf.
In the blue glass there is now a cocktail similar to the Cuba Libre, which is colored red at the top. The presence of the crocodiles is represented by the lime quarters. The bluish bottom of the glass is supposed to indicate the pool.