I am aware that in August 2020 Knotlow was reported to have bad air in one of the lower passage. Has anyone been down recently to say whether or not this is still the case? Thank you,

Good evening, My club is looking at doing a trip down Winnats Head cave but having done my reading, I'm rather nervous about the 'dangerous boulder chokes' that have been described. Having said that, a lot of these descriptions/trip reports were over 5 years ago, so I wanted to know if anyone...