1.5l water, 3 limes, 4 cucumbers, 4-5 sprigs of mint, 3 tablespoons of syrup
Slice 1 lime and 1 cucumber, and place them in a pitcher. Blend the remaining cucumbers and limes with 1/2 of the water, then strain through a sieve. Add the syrup, mint leaves, and top up with the remaining water.