Gritstone
Member
Just a heads up, been into Knotlow this morning intending to do the climbing shaft down to the coffin level at the bottom of waterfall chamber. On the ledge at the top of the pitch I found that I was struggling a little to breath and felt a little dizzy, needless to say I didn't go any further. The climb back out was a little trippy though. Once I got back up to Pearl Chamber I was OK again. Take care if you are down there over the next few days and listen to your body if you like me didn't have a gas alarm. I've updated the logbook at the bottom of the climbing shaft.