Aha!

I knew the tunnel from the Clifton Extension Railway emerged somewhere around here. Checking maps later, it turned out my hunch that it was hidden in these trees was about right. The giveaway is the little gate there. Let's take a closer look.

GPS Coordinates: 51.46971, -2.63696
Location: Sneyd Park

Aha!
I knew the tunnel from the Clifton Extension Railway emerged somewhere around here. Checking maps later, it turned out my hunch that it was hidden...