Alphabetical thing: Blackwall

Blackwall station is on the Docklands Light Railway's branch to Beckton.  There are two raised platforms with stairs and lifts going down to street level.

What's immediately outside the station? The fringes of Docklands. Like Blackheath, this is an area that tries to be very upmarket, but luckily doesn't always manage it.

There's a network of footpaths and cycle lanes that unlike Blackhorse Lane actually leads somewhere, towards the former dock, now a marina, and beyond that, the riverside, with views of the O2 Dome.

Is it near the Blackwall Tunnel? Yes, the northern end of the tunnel, anyway. But the footpaths all lead you away from it, making it surprisingly hard to find.