In reply to Godwin:
This was one of my first proper outdoor adventures! Aged around 9-10, an organised half term activity when I was at junior school in Tod. A bunch of us walked Hebden to Haworth, up Hardcastle Crags to Blake Dean then over the moor, overnight at the YHA, then I remember a walk the following day but it's a bit hazy (and due to any Timmy Taylor's, we were a bit young for that even in the 70s)