The surprise in this delightful cocktail is the juice from the guava fruit which gives it a unique taste. Guavas are found primarily in Central and South America, but are also grown in the United States in Hawaii and Florida. The slightly bitter taste of the guava is balanced with the sweetness of the pineapple juice. Coconut rum complements the pineapple flavor and a splash or two of good vodka turns this unusual fruit drink into an outstanding cocktail.