Begin by slicing the ripe peaches into wedges or bite-sized pieces, leaving the skin on for extra color and texture.
Next, cut the watermelon into uniform 1-inch chunks to ensure a perfect bite every time.
Roughly chop or tear the fresh mint leaves to release their fragrant oils.
In a large bowl, combine the sliced peaches and cubed watermelon.
Sprinkle the chopped mint evenly over the fruit.
Season the mixture with a small pinch of sea salt and a few cracks of fresh black pepper.
Drizzle the lemon or lime juice over the top, followed by the olive oil if you are using it.
Gently toss everything together using two large spoons until the fruit is just coated.
For the most refreshing result, chill the salad in the refrigerator for about 15–20 minutes to allow the flavors to meld.