And another thing...
a newbie can try is Google Earth.
I flew a couple of heli-lanes transits with an experienced instructor helping out when things got hectic (which they did on both occasions!) and just offering advice like "turn here" or "don't turn there". Crossing LHR has to be one of the most amazing heli experiences. Some of my most memorable flying to date, but IMHO PPLs should remember it's really CPL/ATPL-territory and so our flying has to be at a professional standard.
Getting back to Google Earth - fantastic tool, get down low, adjust the angle of view and fly along the Thames for free! Very good for pre-flight and for a post-flight review to try and remember what happened.
Rgrds
JFDI