The inquest heard that Haydn Evans was escorted to a back door at Carden Park Hotel, asked if he wanted a taxi and left to wander off, despite the fact he had been drinking, it was a freezing cold night and he was only wearing a shirt and trousers.
The coroner told the jury the hearing would help expose what he called the 'less than perfect' procedures there, and how steps had been taken to avoid it happening again.
Giving evidence, staff and management at the hotel admitted that, with hindsight, the matter should have been handled differently.
After the inquest, a spokesman for the De Vere Group, which runs Carden Park, told ITV Wales they extend their 'sincerest sympathies' to Haydn's family. He said 'the events leading up to his death and the actions that have been taken subsequent to his death were documented in the inquest.'
An inquest into the death of Haydn Evans, who was 18 and from Mold in Flintshire, has recorded a verdict of accidental death. The teenager's body was found in a lake at Carden Park Hotel, near Chester, where Haydn had been at a Christmas party.
The inquest at Warrington Coroners Court has today heard from the last person to see Haydn Evans alive - a doorman at the Carden Park Hotel, where Haydn was at a Christmas party.
During the evening, Haydn was involved in an altercation and doorman Andrew Pardon escorted him out of the premises.
He asked Haydn if he wanted a taxi home, and he answered that he wanted to walk. The doorman said he went back into the hotel to check on a colleague, and, when he came back out, Haydn had gone. He assumed he had got a taxi or been found by friends.
The inquest has also heard from management at the hotel, near Chester, who said they have changed health and safety policy since Haydn's death, including making sure the lights around the lake on 24 hours a day.