INGREDIENTS
7 cl Coachman Gin
6 cl fresh grapefruit juice
3 cl fresh lime juice
3 drops of Agave 
6 cl soda water

PREPARATION
Add the gin, the juices, the Agave into a shaker with ice. Shake well for 20-30 seconds. 
Pour into a high ball glass with ice. Finally top up with the soda. Garnish with 1/4 of a Grapefruit slice.