A zoo has hit back at a visitor's scathing review, picking on everything from "invisible animals" to long queues and even moaning about the 109-year-old attraction's location.
The anonymous reviewer branded Edinburgh Zoo as “the worst zoo” he had ever been to, before ending his tirade on Tripadvisor with the word "avoid".
The man, who went to the venue in March last year, went on to list all the issues he claims to have experienced during his trip, Edinburgh Live reports.