This weekend promises to be a hot one in the Bay Area. Bring it! I'm ready, especially when I can always get a cool tall glass of aqua fresca to keep me hydrated. Mmmm, I love agua fresca, the popular fruit drink from Mexico. You can find them at most taquerias in town, but I especially love the ones made by Cactus near my Rockridge home. What's amazing about these simple fruit puree mixed with water and a bit of sugar is just how natural and refreshing it tastes. And since Mexico is generally warm, the agua fresca has summery flavors like watermelon along with traditional flavors like horchata and tamarindo. But my all-time favorite (OK, watermelon ranks pretty high) is cantaloupe. I love the floral sweetness of the melon and the pretty orange color. I can take any heat as long as I can get my hands on some agua fresca.