Weird Wasthills Tunnel

On 8 May 2005, John, Todd and Cory helped take Katiman through Wasthills Tunnel, on the Birmingham-Worcester Canal.
New-fangled with his digital camera, John took several photographs in the dark based on vague shapes and light they passed.
These show the amazing calcification built up over the years.

Wasthills Tunnel ventilation

Wasthills Tunnel wall