Combine equal parts water and sugar in a small saucepan. Bring to a boil, stirring to dissolve the sugar. Let cool, and then chill before use.
Fill a large pitcher with ice, and then add the brandy, liqueur, lemon-lime soda, Cava, lime and orange juice. Stir. Add simple syrup to taste.
Garnish glasses with orange and lime slices and cherries.
Recipe courtesy of The Columbia Restaurant, Ybor City, Tampa, Florida