Tuesdays / 15:00 - 18:30
Mail Rail at The Postal Museum
Booking required
£60 per person
For ages 12+ only

New dates for April, May and June now on sale.

Explore the 100-year-old Mail Rail tunnels on foot and discover one of London’s best-kept secrets.

Group members wearing helmets and high-visibility jackets stand on underground platform next to an old Mail Rail train.
Walk along the Mail Rail platform as the Postal workers did for decades.
Group members in high-vis jackets walking along the train tracks
Mind your step! Walk along the train tracks - don't worry, Mail Rail doesn't run when the tunnel walks are happening.
People in high visibility jackets and hard hats underground on the Tunnel Walks
Feel free to take pictures as you get up close and personal with the 100-year-old abandoned tunnels.
Lone male visitor walking through the tunnel.
Walk deep underground on a route that you don't get full access to when riding Mail Rail.
The Mail Rail tracks separating down two different tunnels.
Learn about the different routes the underground trains took around London. Don't miss the 'train graveyard'!


What to expect

Get access to Mail Rail’s tunnels, tracks and platforms, exploring parts of the railway that aren’t accessible on the Mail Rail ride.

Expert guides tell the surprising stories about the staff who built, operated and maintained the underground railway over the course of 100 years – from its construction in the early 1900s, through the heyday in the middle of the century, to the eventual closure in 2003.

Visitors will need to wear a high visibility jacket and a hard hat for the walk. This protective equipment is mandatory.

Trip Advisor, Aug 2019 ☆☆☆☆☆
Early evening tunnel walk is so interesting, and you get a real feel for the place and how busy it must have been.

Look Up London, Nov 2021
The tour explores just under a mile of the tunnel system and whereas the Mail Rail stops at stations and shows projections, it’s great to be able to experience the tunnels up close.

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The route involves walking on uneven ground in low-light conditions for around 1.2km (0.75 miles) including stepping across rails and up onto platform areas. For this reason, the walk is not accessible by wheelchair users and is not recommended for people with mobility impairments. Tunnel Walks are for ages 12+ only.

If you’re unsure if this event is suitable for you, please contact [email protected] before booking your tickets.

The walk is approximately 1.2km. You will be in the tunnels for approximately 1 hour and 15mins.

There will be toilets available at the start and end of your visit. There are no toilets throughout the duration of the walk.

You can bring a small water bottle with you on the walk, but please don’t bring any food. We ask that you place any bags in our provided lockers at the start of the walk, do speak to our hosts on arrival if there are any items you feel you can’t part with and we can try and help.

You’d be surprised at how temperate the tunnels are – even in the winter! Most guests won’t need to wrap up warm for the walk – you can leave any extra layers in the provided lockers.

Tickets are non-refundable unless the museum cancels the tour due to unforeseen circumstances. In this case, you will be given the option to move your ticket to the next available date, or receive a refund.

The Postal Museum and Mail Rail exhibitions are closed when Tunnel Walks take place. We encourage interested visitors to come back and visit during open hours.