Cave digging

This is most commonly accomplished by scouring the countryside in areas with cave potential for previously undiscovered openings to the underground.

[citation needed] If the discovered feature is significantly draughting air either in or out, it is an encouraging indication that there is potential for a large or extensive cave beyond.

[5] On occasion, a newly discovered opening will be large enough for the average person to enter, but often they are too small and must be enlarged to allow entry.

[8] A similar technique, called plug and feather, involves driving wedges into lines of small diameter holes that have been drilled in the rock.

[10] An environmental and safety assessment should be conducted before blasting to ensure minimal impact to the cave environment.