I'll post this for a few reasons:
for newbies who were worried about how hard (easy) Megatron is
for people who were thinking of visiting on these days and don't want the attention
for anyone who fancies the visit in pure tourist fashion
Quite intrigued by the idea that the YHA have guides trained in such things
Sheffield Adventure Film Festival storm drian visit 23/24 March
https://shaff.co.uk/shaff19/urban-caving-shaff-sheffield
for newbies who were worried about how hard (easy) Megatron is
for people who were thinking of visiting on these days and don't want the attention
for anyone who fancies the visit in pure tourist fashion
Quite intrigued by the idea that the YHA have guides trained in such things
Sheffield Adventure Film Festival storm drian visit 23/24 March
https://shaff.co.uk/shaff19/urban-caving-shaff-sheffield