They were actually a lot of fun, if the swears and satanic symbols spray painted on the walls weren't too offensive for you. It had two main loops and you could go a bit deeper, but we usually just stuck to the two main loops. There was one place in those two loops where you have to crawl (but was still pretty wide) and plenty where you couldn't stand up straight.

https://magicvalley.com/news/local/mini-cassia/gallery-kimama-wind-caves/collection_961b4cac-dd1f-11e3-90eb-001a4bcf887a.html