In the world of space exploration, the Grand Tour is the journey a spacecraft can make every 174 years from Earth to visit the outer planets in the Solar System. Thank goodness you can book a guided tour of our software any time you like. Just choose a date and time and let us take you through the WhenYouFly system. We'll show you all the features that most pertain to you. You'll get to see for yourself why we love our software and belive you will, too.