A Rishton man who had been drinking all night with friends plummeted 50ft from the top of a tree, his inquest heard.
Blackburn Magistrates Court heard how paramedics had to abandon their ambulance and continue on foot as they struggled to get to 31-year-old Dennis Slater as he lay on the floor in pine woods near Dean Reservoir, Great Harwood.
His father, Kenny Slater, accused paramedics of not trying hard enough and questioned why it had taken an hour and a half to get his son to hospital.
But coroner Michael Singleton commended the paramedics and other members of the emergency services for their efforts on behalf of the deceased.
"I know the concerns the family have but I am satisfied a full response was mounted and that Dennis died despite the efforts of the emergency services and not because of them," said Mr Singleton.
"I am often awe struck by the efforts of the emergency services and on this occasion I commend them for their efforts on behalf of Dennis.
"The fact they were unsuccessful does not take away any of the credit that should go to them."
Robert Walsh told the inquest he had arrived in the pine woods at about 4am and there were about 12 to 15 people already there and everybody was drunk.
He climbed up one of the tall trees and Dennis had climbed up another tree to about the same height.
Mr Walsh told how he climbed down the tree and a few minutes later heard a branch snap high up and then Dennis fell.
"I saw him fall and he landed on his side," said Mr Walsh. "From the sheer height I knew it wasn’t going to be good."
Mr Walsh said someone else dialled 999 and he made his way up to Blackburn Old Road to wait for the ambulance.
He directed the driver to go down Goldacre Lane and along a track towards the reservoir to get as close as possible to where Dennis had fallen.
The track was blocked by a padlocked gate and the paramedics took equipment from the vehicle and continued the uphill journey on foot.
The fire brigade also attended and cut the chains on two gates so the ambulance could get as close as possible.
Paramedic Simon McRory told how the information provided to ambulance control and passed on to him was that a man had fallen from a tree and might have a broken arm. But he said that did not affect the speed of their response.
He said that when they arrived he and his colleague were subjected to a torrent of verbal abuse by male members of the group.
By that time Mr Slater had stopped breathing and there was no cardiac output. Mr McRory said he had turned blue, his body was cold and in his professional opinion Mr Slater was already dead.
Despite that emergency resuscitation and advanced life support procedures were commenced and continued until Mr Slater was pronounced dead on arrival at Royal Blackburn Hospital where he was taken by the police helicopter.
Recording a verdict of accidental death Mr Singleton described it as a tragic accident.
He said: "All indications are that by that time life was already extinct.
"I would hope that others might recognise that climbing tall trees or buildings comes with a serious risk.
"As far as Dennis Slater is concerned he paid the ultimate price."
The medical cause of death was given as multiple injuries.