Step 1

If desired, spread salt on a small plate. Rub 1 lime wedge on a cocktail glass rim; dip the rim in the salt.

Step 2

Combine limeade, lime juice, cucumber slices and agave in a cocktail shaker. Break up the cucumbers with a muddler or spoon. Fill the shaker with ice; cover and shake vigorously. Fill the prepared glass (or another cocktail glass) with ice. Strain the cocktail into the glass. Garnish with a lime wedge and additional cucumber slices, if desired.