Make the simple syrup: Combine the sugar and 1/3 cup water in a saucepan and bring to a boil. Remove from the heat and stir to dissolve the sugar. Let cool.
In a pitcher, combine the simple syrup, orange juice, Campari and lemon juice. Pour the mixture into ice pop molds, add wooden sticks and freeze until firm, at least 8 hours.
Photograph by Con Poulos
Recipe from Endless Summer Cookbook. Copyright (c) by Katie Lee. Publishd by Steward, Tabori & Chang, an imprint of Abrams.