The first time I had coconut water I was amazed that it was so different than coconut milk; it is literally as different as water is to milk. All the fat and creaminess associated with coconut milk is like cream being associated with skim milk. Among the benefits of drinking coconut water are all the nutrients like potassium and electrolytes, without any fat.
I tried Zico, a pure coconut water from Brazil, today and I love it for its' taste, its' purity (no added sugar or fat) and the container, which is a compact paper carton with a foil pull top. You can literally take it anywhere. It is being marketed as a sport drink alternative since it is loaded with five essential electrolytes, more potassium than a banana, low acidity, no fat, no sugar added, and no cholesterol. Because it is 100% pure coconut water, it is very light and has only the flavor of coconut, but no sweet taste, so Zico has several fruit juice blends for those who want more zest. It's sold online and in various retail & yoga studios, but I found the best price ($1.49) was at Smart & Final.
It's not quite the same as drinking it out of an actual coconut, freshly taken off a tree (truly the best way to drink coconut water), but if you close your eyes and drink, you will get a taste of Brazil to tide you over until you can get to the source.