Add olive oil If you are making your salad quite in advance, I recommend that you remove the excess water from the cucumbers. Salt the quartered cucumbers, place on top of a colander with a container below. Let it aside for about 30 minutes, but not more than 3 hours. Pat dry with a towel.
In a large bowl add the quartered cucumbers, sliced radish, chopped red onion and fresh parsley. Mix and set aside.
In a small bowl mix together, the olive oil, lemon juice, white vinegar and sugar. Drizzle it over the mixed salad and combine well.
Season with salt and pepper to taste. Let it rest for about 15 minutes before serving. Mix well again to redistribute the salad and serve!
Place any leftovers in the fridge. Enjoy!