Spend a day with your family in Calistoga! Old Faithful Geyser of California has donated a family admission pass good for the admission of two adults (ages 13 and over) and three children (ages 6-12). Children under six are free. The Calistoga Geyser is one of three famous Old Faithful Geysers in the world, erupting every 40 minutes on the yearly average. An exhibit hall, snack bar, gift shop, video room, self-guided tour and picnic areas are included in your visit. Open daily at 9:00 AM. The Petrified Forest in Calistoga has also donated a family pass. Step back in time over three million years and walk the trail of the Petrified Redwood Giants.