Largest El Nino on Record Predicted by Kokopelli Rafting | Oct 24, 2015 | Kokopelli Rafting, New Mexico Rafting, Uncategorized The snows predicted for the Rio Grande drainage can potentially bring big runoff for next Spring. If you’re looking for the Biggest water consider booking Late May or Early June. Some Saturdays are alreaddy selling out! Taos Box – Class IV