looks great!
in a similar vein - i've been looking for the 13th century friary tunnel nearby that was shown in hidden cardiff for the last couple of weeks. i've got it narrowed down to a street and i know there's a distinctive green fence just to the right of the tunnel, but there are three of those fences along the side of the dock feeder in the area i believe it's in and it's tricky to get down there with staff smoking out the back and i managed to stupidly set off an alarm (wasn't activated the evening before so i'm pretty sure the alarm is only set on weekends to discourage drunks).
has anyone had any success with finding it? drop me a private message if you want any clearer info just don't want to advertise it's location online until i've actually found it and had a look around.