I heard this go over my house 2 miles away from Alder Hey, checked Flight Radar 24 and saw it was landing. Cycled to the hospital and waited for it to take-off to film it.
Flight Radar showed it came from off the coast of Anglesey to the west of Holyhead/Trearddur Bay before noon today Saturday 28 August 2021.
If you have a decent sound bar on your TV or a good computer, the sound of this is excellent. I haven't clipped it or added irrelevant music. Whatever the max weight of this helicopter, it is all held up by just those 4 narrow blades... still blows my mind!