All airspace above FL195 in the UK is Class C.....
Can one fly VFR in this Class C at say 20,000' ?
The CAA safety Sense leaflet says:
c) VFR flight is also allowed in Class C airspace, but in the UK this is all currently above Flight Level (FL) 195, where VFR flight is not normally permitted unless specifically authorised.
Why is that if you have the right kit onboard your aeroplane?