Chop the watermelon into bite-sized cubes and slice the cucumber into thin rounds or half-moons. Add both to a large serving bowl.

Crumble the feta cheese into small chunks and sprinkle over the watermelon and cucumber mixture.

Chop the mint leaves coarsely and add them to the salad.

Zest and juice the lime, then add both to the salad bowl.

Sprinkle sea salt flakes and freshly ground black pepper over the salad and gently toss to combine.

Taste the salad and adjust seasoning with more salt or lime juice if needed.

Chill the salad in the refrigerator for about 15 minutes before serving.