I first had this agua when I was visiting my little brother in California. We had stopped to pick up a few items for dinner in a little mercado near his apartment. As we browsed the produce aisle looking for avocados, I spotted a row of brightly colored aguas being sold by the gallon. I asked the vendor which was her favorite and she quickly pointed to the vibrant orange agua made with carrots and cucumbers. I was hooked after one sip and have been recreating it at home ever since.