I have found a new drink that is very refreshing......... Matcha Tea. It is full of antioxidants and tastes great. The green powder looks weird (it is a green tea but tastes nothing like regular green tea) It is expensive but a little goes a long way. There is a caffeine in the Matcha tea that supposedly does't act the same way as coffee caffeine.
To make the tea you add 82°C water to the green powder and mix vigorously until it is very frothy. (I have a shaker for this) to make even more refreshing I added some fresh lime juice.
Try some Matcha Tea today.