Add the simple syrup, lemon juice, lime juice, rum, vodka, gin, and Cointreau.
Shake well and strain into a Highball glass filled with ice.
Top with a splash of Coca-Cola®.
Garnish with a lemon wheel.
You can find this cocktail at the following Walt Disney World bars and lounges: 50's Prime Time Café · Ale & Compass Lounge · Belle Vue Lounge · Coral Reef Restaurant · Crew's Cup Lounge · Crockett's Tavern Lounge · Grand Floridian Cafe · Hollywood & Vine · Kona Cafe · Mama Melrose's Ristorante Italiano · Martha's Vineyard Lounge · Olivia's Cafe · Outer Rim · Sanaa · Singing Spirits Pool Bar · Tambu Lounge · Territory Lounge · The Turf Club · The Wave · Victoria Falls Lounge · Whispering Canyon Cafe