In Pennine country the word 'pothole' has come to denote a 'deep cave' and so potholing has become a synonym for caving.
UNDERGROUND SCENERY: Caving at Skoska Cave (s); CHALLENGE: Caving at Alum Pot - scene of the Christmas tragedy (s); HAZARDS: Caving in the water-filled Dow Cave in the Yorkshire Dales (s)
A CHRISTMAS caving tragedy has thrust the media spotlight on caving.
Alum Pot contains stream passages and is one visited many times by members of Huddersfield Caving Group.
When Huddersfield Caving Group was set up in the mid 1990s, the advertisement read: "Very small group of friends ready to welcome people for walking, camping, cycling, caving.
Today, the club aspect has almost disappeared, but an informal group of caving enthusiasts still meets up occasionally.
If I don't go caving for three months or so, people around here can tell.
More importantly, for Damian the values of caving and winemaking cross over and reinforce one another.
For high resolution digital images of Damien Grindley caving in Liburn Cave, Redwood Canyon, Sequoia National Park, visit the Image Bank at http://kjsales.