If you do a little exploring, you'll find that this is the term for the recreational exploring of caves
[DOC] [TLE] Margarets Fulford Cave Guide [PAR] A third entrance, called the North Entrance, is located to the left of the culvert in a 
rock ... You drop in and go right to get to the three-level pit (be careful, because 
it's a ... You'll be glad you did, when you've been in the cave awhile and feel the 
chill .... to the left but, you have to climb up a little and it's difficult to do the first 
time.