Deep Cave in Edwards, Texas, has a regular entrance, and a ...rather more claustrophobic one.
A Mind Reader, A Pin Head, and a Fool; The Story of "Professor" Johnstone's Visit to Wind Cave [previously].
When they [the search party] arrived in that portion of the cave two members of the party were insensible. I was raving and Moore was the only man in his right mind. He had me down on the floor of the cave, my throat clutched with his hand while in the other hand he held a Colt revolver. We had had nothing to eat for five (sic) days and four nights. McDonald dies soon after that, one of the party was adjudged insane and taken to the asylum. I was almost blind and it was necessary to have an operation performed on my eyes.
The Lady of Orda Cave Two-time world champion free diver Natalia Avseenko ventures deep into Ordynskaya Cave in Perm, Russia, one of the longest and biggest underwater gypsum caves in the world. She dressed as the mythical Lady of the Cave, a spirit who protects divers inside the “natural cathedral”. Orda Cave previously.
The Castle in Front of the Cave is, unsurprisingly, a castle in Slovenia fully integrated with a cave system; built in several stages beginning in the 13th century, the castle serves as the front to a large network of caves in the side of a mountain. This excellent flickr photoset has plenty more detail about the castle's history, defense systems & more. For those who want more detail, a series of QTVR panoramic images of the insides of the castle available on this Slovenian site. Via.
The site design is somewhat unfortunate, but The Virtual Cave features lots of photos and information on, well, caves and cave formations. We've all heard of stalagmites and stalactites, but I'd never heard of cave draperies or cave pearls before. Then you've got your helictites, your aragonite, and your splash stalactites (found in lava tubes). And they've got a Show Caves Directory of caves in the United States that are open to the public, with addresses and contact information by state.
8 people trapped in a cave have been reached by rescuers. Against advice, they went spelunking during bad weather and got trapped by rising water. After two days they're safe, but they're weak, hungry and dehydrated. Our heros weren't able to find anything to drink in the middle of a flood. (I bet they'd also need to be rescued from an escalator during a power failure.)