if your in the lakes then a tour round some of the lakes would be a good idea, however it would be more than a 120 mile trip as your camping quite some way from the "good lakes roads"
do you fancy doing hardknott and wrynose passes " if dry excellent and challenging for most" if Wet could turn out a Chore just getting over them.
personally i would get everyone up earlier and increase the length of the run.
will have a looksee if i can sort out a nice route or 2 that i feel the org would enjoy
i have a route in mind approx 180 miles (gasp) but for that you will get the following
hardknott pass
Wrynose pass
Honister pass
Kirkstone pass
A view of these lakes
windemere
crummock water
buttermere
derwent water
back end of ullswater
if we add another 10 miles or so also was****er and an exceptionaly good place for a meal circa 7 to 10 pounds sit down lunch (pub)
180 miles does not sound a long time at 60 mph BUT in the lakes you will be doing more like 20 to 30 mph "but the Scenery will BLOW your mind"
Tricky route to plan "lots of little country lanes" (even i get lost sometimes) however it's all in the fun