Pour the gin, cherry brandy, Bénédictine, Cointreau, Angosturra Bitters, pineapple juice, lime juice and grenadine in a cocktail shaker and mix it all up. Or just stir everything together in a jug.
Drp about 4 ice cubes in a tall, Collins glass and pour the Sling over.
Top with soda water, garnish with the fruit and serve,