* Euston

* Green Park

* King's Cross St. Pancras

* Oxford Circus

* Victoria

* Warren Street

If you have a WiFi enabled device, you will be able to check for the latest travel information online and for example access your emails. The signal will be available in ticket halls, corridors and on platforms.

A one-off registration is required to access the online service which will be free during the summer. Access to travel advice will remain free after the Games.

TFL plans to have 80 Tube stations WiFi enabled before the start of the Olympic Games.