Place the watermelon chunks into the blender jar, filling it about three-quarters full.
Squeeze the juice of half a lime over the watermelon, adding a bright, citrusy aroma.
Toss in the mint leaves, pressing them down gently to release their aromatic oils.
Secure the lid on the blender and blend on high until the mixture is smooth and vibrant red, about 30 seconds.
Pour the blended juice through a fine sieve into a large bowl or pitcher, pressing gently to extract the liquid while leaving pulp behind.
Stir the strained juice well to combine and taste, adding more lime juice if desired for extra brightness.
Pour the refreshing watermelon juice into glasses, optionally garnishing with extra mint leaves for a pop of color and aroma.
Serve immediately with ice cubes if desired, and enjoy the cool, juicy burst of summer flavor.
