Posted on behalf of a friend - I haven't been on the Omalos this year so can't give her a definitive answer.
Our friend has been told that the ticket office for the Gorge has been moved to the Natural History museum/exhibition whose entrance is a little way back down the road from Xyloskala towards Omalos hamlet. This seems unlikely to me but I'd be grateful for information from anyone who's passed that way recently and can confirm/deny the rumour.
Thanks in advance.