Sorry I've been away a few days.
South line now reaches Cathedral Station.
Edd, for a video about a rail bridge, there's a disappointing lack of minecarts!
Havoc... Wil and I had a pretty in-depth discussion about how the tunnel will go under the cathedral. Man, you must have wasted a lot of time digging that tunnel the wrong way.
As for your lighthouse, the west track is eventually going that way anyway and it happens to be pretty much dead straight across the sea from Ma'Spa Depot. Unless you actually object, I will go there. If you genuinely don't want a station there then I'll avoid it.
EDIT:
Also Edd, I've started digging the tunnel under the cathedral (it's at the right depth and lined up at both ends now); I believe this is the one you wanted to decorate with bricks? It's all yours! I've prettified Wil's end and I'll dig out the tunnel some time soon if you don't. It's a little complex down at the cathedral end, so check it out before you start planning too hard (you'll see what I mean when you go down there).