In a high-speed blender, combine chopped cucumber, pineapple chunks, freshly squeezed lime juice, peeled ginger, fresh mint leaves, and 3 cups of water. Blend on high for about 30-45 seconds until smooth.

Optionally add pure maple syrup to the blended mixture for extra sweetness. Blend briefly just for the syrup to incorporate.

Place a fine-mesh strainer over a large bowl, and carefully pour the blended mixture through it, pressing down the pulp.

Transfer the strained agua fresca into a large pitcher filled with ice to chill further, stirring gently.

Pour into glasses over fresh ice. For an adult twist, add 1 oz. of gin or vodka to each glass. Garnish with mint or a lime wedge.