Peach-Guava Pops

Purée chopped peaches with 2 tablespoons lime juice. In a large bowl, toss sliced peaches with sugar, salt, and lime zest. Stir in peach purée; toss to combine. Let stand, stirring occasionally, until sugar has dissolved and peaches are glossy, about 20 minutes.

Strain mixture through a coarse-mesh sieve, pressing lightly to extract as much juice as possible, and reserving peaches. Stir together strained peach juice (you should have about 3/4 cup), guava juice, and remaining 1/4 cup lime juice.

Divide reserved peaches evenly among ice-pop molds; top with juice mixture. Freeze until firm, at least 6 hours and up to 5 days.