I now have the comparative joy of building 3.5 hours solo time "Any way I wish. Plan a route and fly it".... so I've got to try and come up with something interesting to do.
Any ideas anyone? Southampton to where? Preferably not land away as I'm trying to make it as cheap as possible.
Not sure where you've already been, but if it were me, I'd fly all the way down the coast to Lands End, which has a free landing voucher for November in Flyer. Come back by a different route - North coast, or inland. In good weather the views should be great. Haven't measured it, but should be about right timewise.
Been there already? How about exploring Wales, if you can get the weather.
I don't know about "comparative joy", 3.5 hours flying sounds pretty wonderful to me.