Please note: this deal is over 2 weeks old and may no longer be valid.

We're often being asked the best way to get cheap theme park tickets, and the answer is - arrive by train! With South West Trains you can get two-for-one-entry at some of the UK's top theme parks! Prices start from £42 for two adults which is just £21 each!

Click to see all the attractions and more with South West Trains

There's a huge range of attractions that you can get two-for-one entry at, including Windsor Castle, Hampton Court Palace and Stonehenge. But it's the theme parks that really grabbed our attention!

Just go to the link, find your attraction and download your form so that you can claim your two-for-one at the gate. Remember to keep your train ticket!

Thorpe Park - £42
Arrive into Staines station. Enjoy rides such as Tidal Wave and THE SWARM, a new ride for 2012 featuring the UK's first winged rollercoaster.

LEGOLAND Windsor - £44
Arrive into Staines station. Explore the mini LEGO creations, from Atlantis underwater to StarWars MiniLand complete with all your favourite characters.

Chessington World of Adventure - £69
Arrive into Staines station. Visit the zoo, ride the thrill rides and enjoy spending time with the lovable animals from DreamWorks Madagascar Live.