Talk about a dream guest. Bill Stone has been to the deepest depths and the highest heights, if you really think about it. He's developed rebreathers for cave diving, which has helped him discover more deep cave than almost anyone else on the planet. He's also working toward discovery on OTHER worlds through his company, Stone Aerospace. Just listen and be amazed.

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KOR, TAG Fall Cave-IN, and Speleofest were cancelled this year due to Covid-19, so please consider membership or a donation to the following grottos:
http://louisville.caves.org/
https://www.gcgcavers.com/
https://dogwoodcitygrotto.org/