In a mixing bowl, combine the sliced radishes, diced cucumbers, chopped red onion, parsley, and feta cheese.

In a separate small bowl, whisk together the olive oil, apple cider vinegar, honey, salt, and black pepper until well combined.

Pour the dressing over the salad and toss gently to combine.

Serve immediately or refrigerate for 30 minutes to allow flavors to meld.