1. People who explore caves as a hobby or sport; spelunkers.
Usage: Plural of caver; commonly used in British English.

Examples

• The cavers descended into the limestone cavern with their headlamps and safety gear.
• A group of experienced cavers discovered a new underground passage last summer.
• Cavers must be physically fit and comfortable in tight, dark spaces.
• The local caving club organized a trip for amateur cavers to explore the state park.
• Professional cavers often map and document previously unknown cave systems.