Soft drinks for sophisticates

I have a perfect new hangout in Arles - a salon du thé called Le Calendal which overlooks the amphitheatre (where we saw the legendary Lou Reed live in concert last night. ) It has three major attractions: it has free wi-fi (pronounced, endearingly, wee-fee by the French), air-conditioning and a great drinks list which includes teas from Mariage Frères and a range of ‘sirops’ which are like adult squashes.