Anyone There ?

Blisworth Tunnel on the Grand Union canal at Stoke Bruerne. Over 3000 yds long,takes about 45 mins to travel.Built 1805, 3rd longest in England. Used to test materials for the Channel Tunnel. 
In Extras. The Indian Chief gives it a go. Lots of reports of "ghostly " things in the middle from those who died there digging and tunnelling  it out.