Tonia,<br /><br />Can&#39;t help you with the train and &quot;Chunnel&quot; question but I have always found London to be one of the easiest cities in the world to get around.<br /><br />You can buy a pass that is good on all buses and all underground trains (the &quot;tube&quot;).  I lived there for a couple of years and always used public transportation.<br /><br />I&#39;m sure Chris will fill you in with more detail.<br /><br />