I thought for a while that it might be much easier to become lucid in a place you have never been before, quite simply because you might wonder where you are, or how you got there. Strangly enough, this never seems to be the case for me.
I guess it might depend on what method you use to become lucid. If you are one of the people who can react to thing being out of place, or unusual events, then finding yourself in a strange alien place may cause you to become lucid. If instead you usually use dreamsigns, or reality checks when you see something familiar with real life, then you may find it more common to become lucid in a familiar environment.
Thanks for the responses guys