This post is part of my continuing series of walking the Overground & DLR, now that I've successfully walked the entire Tube network. The walks are in continued support of Bowel Cancer UK.



Euston is probably the ugliest mainline station in London, but at least it was a sunny day.

My second Overground outing was a somewhat ambitious trek from Euston all the way out to Watford Junction. I completed the 22.27 mile (35.84km) walk on a very sunny June 21st, 2014 in just under 7 hours.

A significant portion of line uses the same tracks as the Bakerloo line. This meant I ended up walking some of the same streets I had previously, although this time going in the opposite direction. In fact, until 1982, the Bakerloo line used to run all the way up to Watford Junction, which means this walk could also be considered a tube walk extension.

Here are just a few of the photos I took along the way. As always, I hope you enjoy!



My favourite Euston secret is this abandoned Leslie Green Northern Line station building



The Former National Temperance Hospital



Greater London House, formerly the Carreras Cigarette Factory



A familiar sight



Not what I expected to find in the backstreets of Camden



Dylan Thomas' former home



Overground track heading north



The Rotunda Building, Camden



Looks like a Banksy knockoff



The Pirate Castle



Mandatory Canal shot. LMS stands for London, Midland and Scottish Railway which used to own the goods yard where today's Camden Market stands.



The Stables housed and treated injured horses who worked moving goods off and onto the trains that used to call at Camden



The world famous Roundhouse



Art at the top of the Roundhouse



Another familiar sight



Former Primrose Hill Station, which annoyingly for me no longer exists



Unfortunately, I couldn't get a clear shot of the ornamental stonework at the mouth of the Primrose Hill Tunnel



Ventilation shaft for the Jubilee and Metropolitan lines



I finally make it to the second station on the line. If you follow the line as closely as possible, the walk is about 2.7 miles, one of the longer distances between stations in Central London



The Alexandra and Ainsworth Estate



The back of the Alexandra and Ainsworth Estate



Some interesting "street-art" in Kilburn



Another candidate for London's ugliest station. Queen's Park is also where I begin following the Bakerloo line



The back of the phone booth I used for the cover photo of my Bakerloo line walk



Still say this station looks like a barn



Another visit to Tubbs Road Pocket Park



World Cup time



My favourite random sign of the day



Didn't expect to find a Windrush Road this far north in London



Grim looking empty market at the base of the former Unisys Towers



River Brent



Wonder how long before they change this signage?



Argenta House, opposite Stonebridge Park station



Secret entrance along a shaded footpath



Lots of tracks



Wembley



Wembley Central Station under extensive renovation



Amazingly, this pub with tenuous Canadian connections has still not been redeveloped since the last time I was here.



Wembley really dominates the skyline of North London



My favourite Bakerloo line station



Harrow Central Mosque



The kings and queens of Britain



Harrow & Wealdston station seems to be missing a few letters. This is the end of the Barkerloo line, but I still had further to walk



Ghost sign



This pub has seen better days



Hatch End station has possibly the nicest exterior of any station along the line



It even once had a dedicated parcel office



Still further north to go



The pavement suddenly ended and it was time to go cross-country



You know you're out of Central London when you have to use a stile to cross a field...



...full of horses



Another clue I'd left London was that the buses were no longer being run by TFL



This might also have been a clue



Love this name



St Matthews Church, Bushey



Bushey Station



Who doesn't love a railway viaduct? This one is located in The Dell.



The River Colne



Watford High Street Station



It was then just a short walk to the final stop of Watford Junction

This walk was even more enjoyable than my last one. It had all the elements I look for in a great walk: good weather, interesting sights and a little bit of the unexpected. This was especially good as I ended up spending a fair bit of time in areas I'd already walked through before.

The three most surprising lessons I learned from this walk were the following:

You can never predict when you'll end up walking through a field full of horses. That Watford, while outside of London, is still within the M25. I kept expecting to cross over or under it at some point (as I did during my Metropolitan and Central line walks) but never did. You can get from Watford Junction to Euston in just 17 minutes if you catch the non-stop train. This made my nearly 7 hour walk seem somewhat less impressive.

You can read all of my Tube, Overground & DLR walking related posts on my Walking the Tube page and you can donate to help support Bowel Cancer UK here. Finally, I'd leave to hear your thoughts on the walk so please leave your comments below: