Wash cucumbers, cherry tomatoes, and red onion thoroughly. Chop cucumbers, halve cherry tomatoes, and thinly slice red onion.

In a large mixing bowl, combine the prepared cucumbers, cherry tomatoes, and red onion. Add chopped dill and mint.

If using, crumble feta cheese over the salad and fold it in gently.

In a separate bowl, whisk together olive oil, red wine vinegar, and minced garlic. Add salt and pepper, blending well.

Pour dressing over the salad and toss gently until everything is well-coated.

Taste the salad and adjust seasoning with more salt, pepper, or lemon juice if necessary.

Cover and refrigerate for at least 15 minutes before serving to allow flavors to meld.