To be honest, I thought clocking up 300nm might have been a problem, given some of the airspace in the UK but I cracked it. Take a nice day, set course for Wales in uninhibited Class G and land say at Aberporth then perhaps Swansea or another enroute airfield on your way back. Get the sightseeing in and straightline distances go out thw window. I think I clocked up 430nm according to my GPS. With my 196, I can also prove I did it