If you thought a day trip to London was too expensive, think again. Whether you’re venturing in from King’s Lynn, Ely, or Hertford, or if you fancy a change of scenery from Stevenage, Hitchin and Hatfield, Great Northern makes it easy - and affordable - thanks to brilliant 2FOR1 offers and money-saving travel deals when you arrive by train.
From royal landmarks and iconic cathedrals to stunning river crossings and skyline views, here are five unforgettable day out ideas that prove London doesn’t have to mean unaffordable.
Tower of London

This thousand-year-old castle has seen everything from royal executions to famous ravens - and of course, it’s home to the Crown Jewels. Families will love meeting the Yeoman Warders (aka Beefeaters), seeing armour from Henry VIII’s wardrobe, and exploring the castle’s spooky prison history. A must for history buffs and curious kids alike.
Discounted entry: Get 2 adult tickets for the price of 1 when you travel with Great Northern. Just bring your train ticket and a printed voucher from Days Out Guide.
Address: London EC3N 4AB
Nearest Station: London Bridge (change for Thameslink at London King's Cross or Finsbury Park)
Westminster Abbey

This iconic church has been the setting for 39 coronations (including William the Conqueror in 1066), 16 royal weddings, and the royal family still worship there to this day. Discover centuries of history, from the Tomb of the Unknown Warrior to Poets’ Corner, and don’t miss the soaring gothic ceilings. Entry includes a multimedia guide, and you can bring one child for free with each full-paying adult.
Discounted entry: Get 2 adult tickets for the price of 1 plus one child ticket per adult when you travel with Great Northern. Just bring your train ticket and a printed voucher from Days Out Guide.
Address: 20 Deans Yard, London SW1P 3PA
Nearest Station: London King’s Cross + Tube to Westminster
St Paul’s Cathedral

Designed by Sir Christopher Wren, this masterpiece is a true icon of the London skyline. Venture down into the crypt, test the acoustics in the Whispering Gallery, and climb the dome for panoramic views of the city. Booking ahead is essential, but the 2FOR1 offer still applies when you plan in advance.
Discounted entry: Get 2 adult tickets for the price of 1 when you travel with Great Northern. Book online in advance and show your train ticket with voucher on the day.
Address: St. Paul's Churchyard, London EC4M 8AD
Nearest Station: City Thameslink (change for Thameslink at London King's Cross or Finsbury Park)
Tower Bridge Experience

You’ve walked across Tower Bridge, but have you ever done it from above? The Tower Bridge Experience lets you cross a high-level glass walkway and explore the original Victorian engine rooms that allow the bridge to open and close. The view of the Thames is unbeatable, especially if you time it right to see the bridge lift.
Discounted entry: Get 2 adult tickets for the price of 1 when you travel with Great Northern. Use the promo code ‘National Rail Days Out - Two Visitors’ when booking online, and bring your train ticket on the day.
Address: Tower Bridge Road, London SE1 2UP
Nearest Station: London Bridge (change for Thameslink at London King's Cross or Finsbury Park)
The View from The Shard

It’s the tallest building in the UK, and the views are talked about for a reason. From 72 floors up, you can spot everything from the London Eye to Canary Wharf, and even further on a clear day. It’s perfect for a romantic date night, a big birthday, or simply a memorable way to end the day.
Discounted entry: Get 2 adult tickets for the price of 1 when you travel with Great Northern. Booking must be made online at least 24 hours in advance, valid on full-price general or all-inclusive tickets only.
Address: 32 London Bridge Street, London SE1 9SG
Nearest Station: London Bridge (change for Thameslink at London King's Cross or Finsbury Park)