William Halliday, a world renowned speleologist began donating his cave collection in 2003.
From the en.wikipedia.org
I've been a speleologist for more than 20 years.
From the newscientist.com
It's also something of an adventure playground for grown-ups, thanks to French speleologist Jean-Claude Dobrilla.
From the smh.com.au
Siffre, an adventurer, explorer and speleologist, chose to spend two months in 1962 living in a cave deep inside a subterranean glacier.
From the scientistatwork.blogs.nytimes.com
More examples
Potholer: a person who explores caves
(speleology) the scientific study of caves
(speleologists) A speleologist is one who studies caves for scientific purposes. Most cavers regard themselves as speleologists to one extent or another.