Wash the peaches under cool water and slice them into thin wedges, discarding the pits.

Peel and slice the English cucumber.

Finely chop the shallot and mint leaves.

In a mixing bowl, combine cucumber and shallots, then drizzle with lime juice, olive oil, salt, and pepper. Toss well and let sit for 10 minutes.

Gently fold in the peach wedges and chopped mint into the cucumber mixture.

Taste and adjust seasoning if needed, then serve immediately with extra mint leaves as garnish.