spelunking
Exploring underground caverns
Spelunking is the recreational exploration of caves.
The word is primarily American and carries a slightly informal, adventurous tone—serious cavers sometimes prefer *caving* to describe their pursuit.
The activity involves navigating underground passages, often requiring crawling, climbing, and specialized equipment: We went spelunking in the limestone caverns last summer.
Hanging cave mineral deposit
- stalagmiteUpward-growing cave deposit
- cavernLarge natural underground chamber
- grottoSmall scenic cavern
- chamberEnclosed room or cavity
passage · karst · flowstone · sinkhole · fissure · crevice · tunnel · gallery
Carbonate sedimentary rock
- karstEroded soluble rock terrain
- calciteCrystalline calcium carbonate
- dolomiteCalcium magnesium carbonate mineral
- gypsumHydrated calcium sulfate
travertine · bedrock · stratum · mineral · fossil · erosion · sediment · formation
Traveling through unknown regions
- discoveryAct of finding something
- expeditionOrganized exploratory journey
- thrillSurge of intense excitement
- adrenalineEmergency response hormone
challenge · descent · squeeze · crawl · rappelling · climbing · scrambling · wading
Forward-facing vehicle light
- helmetProtective head covering
- ropeThick twisted fibers
- harnessStraps controlling an animal
- carabinerSpring-gated metal link
ascender · descender · wetsuit · kneepads · gloves · boots · rappel · belay
Forward-facing vehicle light
- pitch-blackCompletely without light
- blacknessComplete absence of light
- darknessTotal absence of light
- dimnessInsufficient illumination
shadow · torch · lantern · glow · beam · visibility · disorientation · blindness
stalactite
Hanging cave mineral deposit
- stalagmiteUpward-growing cave deposit
- cavernLarge natural underground chamber
- grottoSmall scenic cavern
chamber · passage · karst · flowstone · sinkhole · fissure · crevice · tunnel · gallery · squeeze
limestone
Carbonate sedimentary rock
- karstEroded soluble rock terrain
- calciteCrystalline calcium carbonate
- dolomiteCalcium magnesium carbonate mineral
gypsum · travertine · bedrock · stratum · mineral · fossil · erosion · sediment · formation · aquifer
exploration
Traveling through unknown regions
- discoveryAct of finding something
- expeditionOrganized exploratory journey
- thrillSurge of intense excitement
adrenaline · challenge · descent · squeeze · crawl · rappelling · climbing · scrambling · wading · swimming
headlamp
Forward-facing vehicle light
carabiner · ascender · descender · wetsuit · kneepads · gloves · boots · rappel · belay · ladder
headlamp
Forward-facing vehicle light
- pitch-blackCompletely without light
- blacknessComplete absence of light
- darknessTotal absence of light
dimness · shadow · torch · lantern · glow · beam · visibility · disorientation · blindness · murky
hobby
Recreational leisure activity
- pastimeRecreational pursuit
- leisureFree time for relaxation
- enthusiastArdent admirer of something
amateur · club · community · outing · weekend · guide · tour · beginner · experienced · trip
- explorationexploration, explore, expedition, expeditions, voyage
- outdoor activitieshiking, kayak rental, biking, camping, camping trip
- cavescave, cavern, caves, caverns, grotto
- outdoor adventurebackpacking, camping, campsite, trail, mountaineering
- adventure sportsrock climbing, mountaineering, skydiving, bungee jumping, paragliding
- outdoor adventureshiking, wilderness camping, backpacking, trekking, mountaineering
spelunkingmountaineering
Sport of climbing peaks
mountain climbing · rock climbing · peak bagging · summiting · ascending
spelunkingskydiving
Recreational freefall from aircraft
paragliding · sailing · hang gliding · desert hiking · beach combing