Agree 100% with Phil (Bloody Hell!)
I have only 6 hours but am quite keen to go on a long cross country and have a route planned for when the weather is a bit better, to be honest though most of my flights already have been kinda cross country as I get instantly bored just circuiting my takeoff field so I get up high and fly a few miles across lots of fielded areas and then back again.
Only thing that I would add is that if you do this and you ever feel you are outside your comfort zone and want to abort then you should do so regardless of the inconvenience of others. I get spooked sometimes for no reason at all and wild horses wouldn't get me in the sky, couldn't care less if other folk are waiting or friends have come to watch, likewise in flight, sometimes I just want to come in and land!
Enjoy
Malc