In Dec 2023 I arrived at a campsite in Oliva, Spain and when I handed my passport to the receptionist she declined it and said she must have my ID card as she had to send my information to the local police station. I tried to explain to her the info was in my passport and the UK didn't have an ID card system but she wasn't accepting this until a Spanish man came into the office and heard our discussion and told the girl that I was correct and to accept my passport. It turned out this man was the owner and he apologised saying that the receptionist was new to the job and that this new system was giving them a lot of issues.