Precisely one year ago, a few folks and I had the delight of a tour inside one of HS2's tunnel boring machines as it scoured its way underneath Long Itchington Wood in Warwickshire... And what a spectacular experience it was!

Hopefully I'll capture some of that excitement and energy as I bring you along on the tour with me... And will I unlock the mystery of the pink helmet?

Watch @geofftech2's video here: https://www.youtube.com/watch?v=2wM6v...

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