In reply to Levy_danny:
I go a few times a year (love it) and normally book on but last time it took me about 3 weeks before they picked up the phone, guess they're busy farmers. Considering how busy (not too busy) it was last time I went, and the fact there are no COVID restrictions like social distancing anymore, my guess is that you would be alright to turn up.
It's just a guess though.