If you think Liverpool is bad, this is the reply that I got from the GA handling agent at Edinburgh when I enquired about visiting in my Kitfox:
"The cost for ground handling for this aircraft will be £127.
On top of this we are also obliged to charge the following on behalf of the airport:
Departure Charge: £60 (Increasing to £155 during "Peak hours" which are 0600-0900 and 1600-1800.)
Parking Charge: £0.07 per quarter hour
Navigation Charge: £10
Security Charge £50
If you were to stay for two hours this would amount to a total of £247.56."
I therefore contacted Edinburgh flying club but was told:
"Unfortunately, the airport requires any visiting aircraft to be handled by Signature, so sadly there is no way to avoid their charges."
I subsequently raised these ridiculously high charges with the Chief Executive but he basically blamed the handling agent.
Needless to say, I did not visit Edinburgh Airport!