01 - Rim the glasses with lime juice, then dip in coarse salt or sugar if desired for a classic margarita presentation.
02 - Combine watermelon cubes, lime juice, orange juice, and agave syrup in a blender. Blend until completely smooth and no chunks remain.
03 - Pour the blended mixture through a fine mesh strainer into a pitcher to remove pulp for a silky, smooth texture. This step is optional depending on preferred consistency.
04 - Fill prepared glasses with ice cubes. Pour the strained watermelon mixture evenly over the ice, dividing between both glasses.
05 - Add fresh lime wedges and watermelon slices to each glass as garnish. Serve immediately while cold and enjoy this refreshing alcohol-free treat.