On a holiday partying in Ibiza, Wesley Lloyd-Roberts really got into ketamine - with an addiction to the Class B drug eventually leaving him incontinent.
But the issue wasn't so much its availability on the white isle, but when he got home to Penmaenmawr, Gwynedd, he said "it was everywhere", and its use "just kind of blew up" in north Wales.
Figures from the Betsi Cadwaladr health board area show a sharp rise in ketamine-related A&E attendances - from two in 2020, to 372 last year.
For the past three years, numbers being admitted to hospital in the north Wales area have been more than in the other four Welsh health board areas that responded to a Freedom of Information request combined.
Wesley was left needing the toilet every five minutes, and explained: "If I had pain in my bladder, I could take more because it would get rid of the pain.
