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Is cave exploration an indoor or an outdoor activity?
(infosec.pub)
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. A showerthought should offer a unique perspective on an ordinary part of life.
I’ve been in show caves in Bonaire that had some degree of climate control, mainly for humidity and to ensure sufficient oxygen for visitors for a comfortable experience and to accommodate large groups.
Certainly that’s the exception rather than the rule in my case.