On 15th August we passed through Maida Hill Tunnel near the start of the Regents Canal (if you're entering from Little Venice, as we did). We had to wait for a trip boat to emerge - you can see its tunnel light in the photo below.
Here it is again, a bit bigger!
Some of the people on the trip boat seemed to be enjoying themselves; others looked less sure about it.
And then under the Café Laville and into the short (272 yards) tunnel. What a fantastic location for a café! I looked it up to see if it had a website. I couldn't find one - but top of the search results was a review site giving mostly bad reviews. To be fair, the poor reviews (mainly for bad service) were written over a year ago; the one recent review was rather more positive.
Tomorrow: Forget the Granny Effect, check out the Elvis Effect!