Wash all the berries gently under cool running water and pat them dry with a clean kitchen towel. Slice the watermelon in half, remove the rind, and cut it into ½-inch cubes.

In a large mixing bowl, carefully combine the watermelon cubes, quartered strawberries, whole blueberries, and whole blackberries. Sprinkle julienned mint on top.

In a medium measuring cup, whisk together honey, fresh lime juice, lime zest, and olive oil until smooth and well combined.

Drizzle the honey lime dressing over the fruit mixture and gently toss the salad using a large spoon.