Wash the cucumber and lemons thoroughly under running water to remove any dirt or residue.
Slice the cucumber and lemons into thin rounds or wedges. You can leave the skin on the cucumber for added nutrients, but if you prefer a milder taste, you can peel it.
In a pitcher, add the cucumber and lemon slices. If desired, you can gently muddle them with a wooden spoon or muddler to release more flavor.
Fill the pitcher with water, covering the cucumber and lemon slices completely. If you prefer a stronger flavor, you can add less water.
Optional: Add a few sprigs of fresh mint leaves or basil to the pitcher for added freshness and aroma. You can lightly crush the herbs to release their flavors.
Optional: zest the lemon and add it to the pitcher.
Stir the mixture gently to combine the ingredients. If you like your water chilled, you can refrigerate the pitcher for at least 1-2 hours to allow the flavors to infuse.
Serve the lemon cucumber water over ice cubes, if desired, for an extra refreshing experience.
You can refill the pitcher with water a couple of times before the flavors start to dilute. After a day or two, it's best to discard the cucumber and lemon slices and prepare a fresh batch.