01 - Combine the cubed watermelon, quartered strawberries, and blueberries in a large mixing bowl. Handle the watermelon gently to prevent crushing the delicate fruit.
02 - In a small bowl, whisk together the lime zest, lime juice, honey or agave syrup, and sea salt. Whisk vigorously until the honey completely dissolves and the mixture is well emulsified.
03 - Pour the citrus dressing evenly over the fruit mixture. Using a rubber spatula, gently fold the fruit to coat each piece with the dressing. Take care to maintain the integrity of the watermelon cubes.
04 - Sprinkle the finely chopped fresh mint leaves over the dressed fruit. Give the salad one final gentle toss to distribute the mint evenly throughout the mixture.
05 - Transfer the fruit salad to a serving bowl or individual portions. Refrigerate for at least 10 minutes to allow flavors to meld. Serve chilled for optimal refreshment.