Start by cutting the watermelon into even, bite-sized cubes. Try to keep the pieces uniform so every bite feels balanced and easy to eat. Place the cubes gently into a large mixing bowl, being careful not to crush them as watermelon is very delicate and releases juice quickly.
Wash the cucumbers thoroughly, then slice them into thin rounds or half-moons, depending on your preference. If the skin is thick or waxy, you can lightly peel it, but leaving it on adds extra crunch and nutrients. Add the sliced cucumbers to the bowl with the watermelon.
In a small bowl or directly over the salad, drizzle the olive oil slowly so it coats the ingredients evenly. Follow this with freshly squeezed lime juice, making sure to remove any seeds. The combination of oil and citrus helps bring all the flavors together while keeping the salad light and refreshing.
Sprinkle the crumbled feta cheese evenly over the top. Try not to mix it in too aggressively at this stage so it keeps its texture and doesn’t turn mushy. Add the freshly chopped mint leaves, distributing them across the salad for a burst of freshness in every bite.
Season lightly with salt and a touch of black pepper if using. Start with a small amount—you can always adjust later. The salt will enhance the sweetness of the watermelon and balance the overall flavor.
Using a large spoon or spatula, gently toss everything together. Move slowly and fold the ingredients rather than stirring vigorously to prevent the watermelon from breaking down and releasing too much liquid.
For the best flavor, cover the bowl and place it in the refrigerator for about 10–15 minutes before serving. This allows the ingredients to chill and the flavors to meld beautifully, making the salad even more refreshing and cohesive when you serve it.