Think Like A Founder
You can join a local chapter of the National Speleological Society at caves.org.
Cindy also wrote a guide here at https://cindywu.org/@cindy/so-you-want-to-cave-DF3MNY
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You can join a local chapter of the National Speleological Society at caves.org.
Cindy also wrote a guide here at https://cindywu.org/@cindy/so-you-want-to-cave-DF3MNY