In a large bowl, gently combine the diced peaches, cubed watermelon, and chopped mint leaves.
In a small bowl, whisk together the lime juice and honey to create the dressing.
Pour the dressing over the fruit mixture and toss gently to coat.
If using, sprinkle the crumbled feta cheese over the salad.
Serve immediately or chill for 30 minutes before serving.
Notes
This salad is best enjoyed fresh. The sweetness of the peaches and watermelon is beautifully complemented by the tartness of the lime and the optional saltiness of feta.