People who only work and sleep to kill time between cave trips. They generally use proper equipment, techniques, and responsibility when planning a trip, or at least they know the rules they may break. Cavers tend to travel in loud groups, known to party late into the night, and rarely sleep on a weekend trip. There are several disciplines: party caver, vertical caver, project caver, cave diver, spelunker, rescue caver, etc. A good caver knows a little about everything.