Wash all vegetables and fruits thoroughly. Cut the watermelon into bite-sized cubes.

Dice the avocados, slice the cucumber thinly, and finely slice the red onion. Soak onion in cold water for 10 minutes.

In a mixing bowl, gently toss together the watermelon, avocado, cucumber, red onion, and mint leaves.

In a small bowl, whisk together olive oil, lime or orange juice, honey or agave, salt, and pepper to make the dressing.

Drizzle dressing over the salad mix and toss gently to coat, being careful not to crush the avocado.

Transfer to serving plates or bowls and garnish with extra mint leaves. Serve immediately.