This unique spot is one of newest national natural landmarks in Northern California, and the only way to see it is to take a short boat ride across Lake Shasta. The Lake Shasta Caverns National Natural Landmark was preserved in 2012, but the caverns themselves are at least 200 million years old.

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This video by Youtube User Pavlo Svider gives you a great feel for what an adventure here is like:

Would you go spelunking in these creepy but fascinating caves? How about go for a boat ride on Lake Shasta? For more wild and crazy adventures in Northern California, take a quick peek at This Northern California Hike Leads To The Most Awe-Inspiring Lookout.

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