skos:altLabel | - exploration
- caves
- Exploration
- cave exploration
- cave explorer
- cave explorers
- cavers
- pot holes
- caving clubs
- caving
- Spelunker
- ''caving'', ''potholing'', or ''spelunking''
- Cordées Souterraines
- Spelunkers
- Urban Spelunking
- caver
- exploring in a cave
- pot-holing
- potholer
- potholers
- potholing
- recreational cavers
- recreational caving
- spelunker
- spelunkers
- spelunking
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