Family Pass for a visit to Old Faithful Geyser in Calistoga, California.

Old Faithful Geyser of California was declared one of only three “faithful” geysers in the world because of its regular eruptions. This geyser has also proven itself to be a good predictor of earthquakes. When the geyser’s regular eruptions are delayed or diminished, an earthquake is likely within the next couple of weeks in the 500 miles surrounding the geyser. To this day, Old Faithful Geyser of California remains as one of the most photographed places in the State of California.