Please read carefully information on Blackpool on AIS. All aircraft should have insurance of at least £5million to land at Blackpool. I was about to take a flight to Blackpool when I noticed this, I checked the insurance document of the aircraft I was renting and the maximum insurance pay out was £3.3m. Had to cancel my trip.
Checked other airfields and none of them seem to have this stipulation, I think it maybe due to the high intensity helo traffic in the area.
I don't know if ATC wil actually check on this before you land, however be aware if you are planning a trip to Blackpool as your insurance policy will be null and void if you do have a prang and could turn out quite expensive for you.
CHECK YOUR AIRCRAFTS INSURANCE LIABILITY BEFORE FLYING TO BLACKPOOL