Vallecito, CA…Break out the Halloween costumes! If your kids are between 6 and 11 years old and they wear their Halloween costume to Moaning Caverns between October 7th and 31st, their admission will be only $5 for a Spiral Tour! Now, that’s a treat! Walk in only, not available online. Only available on regular price tickets, cannot be combined with any other offer.

Moaning Caverns is a solution cave located in Calaveras County, California, near Vallecito, in the heart of the Gold Country. It was discovered in modern times by gold miners in 1851, but it has long been known by prehistoric peoples. It gets its name from the moaning sound that echoed out of the cave luring people to the entrance. Still today during certain times of the year sounds may be heard echoing up from the bottom of the cave. The most unique feature is the cavern’s main chamber with a vertical shaft 165 feet tall, which you may descend to the bottom of by a combination of stairs and a unique 100-foot high (30m) spiral staircase built in the early 1900s. Moaning Caverns is home to the largest single cave chamber in California. The massive room extends into the marble deposit of the Calaveras Formation over 180 feet before funneling into smaller passageways. With a 20-30 foot thick ceiling, the open area inside the chamber is, in fact, tall enough to hold the Statue of Liberty (pedestal excluded). There is only one natural entrance into the chamber in the form of a 30-foot vertical chimney dropping into the center of the room. Visitors may view the cavern’s main chamber by walking and climbing the narrow wooden staircase to a flat platform 65 feet underground. For the truly athletic and adventurous, from there, a ten-story spiral staircase leads down to a second platform at the base of the chamber.