Evening trip into GB. Very foggy on the surface so finding our way from the farm, across The Gruffy Nature Reserve, to the cave entrance was amusing. Standard route into the cave and down into main chamber. Then up into Ladder Dig. We finally built up enough enthusiasm to go through the wet duck. I found the way through the boulders and into Bat Passage. I'd forgotten just our amazing and white all the formations in Bat Passage are.