I have now been to all 4 of the major caverns of the Sierras in Northern California - Moaning, Mercer, California, and Black Chasm. California Cavern was disappointing because many of stalactites were broken off a long time ago. It does have the best Crystal Shop though. Last time I was there in about 2006 I never saw more big... More

I have been to all the caves and this one take the prize! Has quite a few chambers, the most in the entire county and very informative and funny staff. You will get history AND comedy involved in this tour. This is must for anyone interested in caving. They also have some fun looking excursions that I would like to... More

We were coming down from our trip in the snow in Sno Park, a good 2 and a half hours drive from the San Joaquin Valley. This is up on the mountains taking 88 to 49 and ending up in Sno Park, a beautiful forested area with a frozen lake during the dead of winter and a great place to... More

If you've never been down in a cavern, this is a wonderful place for a first time experience.

This is a great (and easy) introduction to cavern exploration. If you have never been to a cave or if you have avoided them because of claustrophobia, this is the tour for you! Although there are a couple of narrow openings, most "rooms" are large and the entire walk is fairly well lit. The guide we had was friendly, knowledgeable... More

Caverns are beautiful w/ stalagmites etc. Be prepared to wear a helmet and go w/ good tread shoes. We had a great guide telling us stories about the history. It's a little tricky in a few places where the walk gets wet or very narrow...you have to bend down and twist to get around. Well worth it.

This is a must see if you are in the area. You will learn about geology and early California history while being delighted by amazing mineral formations. It can be a little chilly if you are in the cavern, so bring a light jacket/sweatshirt and clothing that you don't mind getting dirty. Leave a small tip for the highschool/college age... More

My husband and I went for the Middle Earth adventure. Personally, I think the trip got more adventurous after Jungle Room, the Middle Earth part. Thought the portion of the trip before the Middle Earth could have been shortened. One of our guides probably got too *tired* after 2 hrs, she went pretty quick without waiting for some of us... More

Our guide was very nice and gave a great tour full of a lot of information. The cave itself was great and my 11-year-old son just kept exclaiming, "Wow!" Sometimes the walk was a bit slippery and there were some narrow places to creep through, but we all managed and really enjoyed it! My husband, who is disabled, was able... More