In reply to steve_gibbs:
Yes it's working.
It's called FLS North Face Car Park.
Or you can locate it on the map in the app and click on that.
Once in your app after you've used it once, you can just reclick on it.
You can pay for further days on your phone, eg from CIC hut, but can only do one day at a time.
It says no overnight parking but that seems to be ignored.
Not sure if anyone is getting fines, seems to be an honesty system, though they do have someone patrolling, putting reminder leaflets under windscreen wipers on unpaid cars