and a few other things...this is the Birkenhead Bridge.
It opens in the centre so that tall masted ships can get through.
Walk across this bridge, follow the road around to the left, keep going and you end up in Semaphore.
On a good day you can look into the water and see jellyfish.
See that translucent circle just bottom left of centre?
Some days the water is so thick with them, I could stand and watch for hours.
The last small dock before the bridge.
Barnacle crusted pylons and concrete supports. Maybe these were left from the old pier before the new bridge was built?
the signal arm on top of the bridge tower, you can see those in the first photo.