Shake all but the soda with ice, strain into a tall glass with 1 oz soda water, fill with crushed ice, and garnish with an orange wheel, cherry, lime twist flag. A double old fashioned glass with a Navy Grog ice cone would work well too!
A three-way cross between a Negroni and both Don the Beachcomber's and Trader Vic's Navy Grogs. Campari goes well with grapefruit and allspice flavors, so I knew it was going to be a win. Since the bar had a gin theme, I figured that my tropical drinks needed to eschew rum for a bit.