Start by peeling the mango using a vegetable peeler. Slice the mango away from the pit and dice into bite-sized cubes.

Peel and cut the cucumber in half lengthwise. Scoop out the seeds and dice into small pieces.

Gently rinse the blueberries in a colander under cold water and let them drain well.

Halve the avocado, remove the pit, and dice the flesh into cubes.

In a large mixing bowl, combine diced mango, cucumber, blueberries, and avocado. Gently mix with a spatula.

In a small bowl, whisk together olive oil, lime juice, honey, salt, and pepper until well combined.

Pour the dressing over the salad ingredients and toss gently to coat without mashing the avocado.

Finely chop cilantro and sprinkle over the salad, giving it one last gentle toss.

Serve immediately or refrigerate briefly before serving. Store dressing separately if preparing ahead.