A paddleboarder who rushed to the rescue of a man who jumped 70ft into the sea has described "swimming through the pain" to haul the man back to the surface.
Three people were seriously injured after they jumped into the sea from Durdle Door arch in Dorset on Saturday.
Police are now asking people to stay away from the popular tourist spot.
Mike Wiley, 31, from Southampton, told BBC News he feared he would drown after he found a man unconscious on the seabed.
He said: "[The man] hit the water so hard he didn't even come up to the surface, he went straight down.
"I could see a white body on the seafloor, but it was so deep none of us could get to him. Everyone was in a state of panic."
Videos posted on social media sites showed so-called tombstoners making the leap from the 200ft rocks.
Mr Wiley said after five attempts of trying to reach the victim, he managed to grab him but then struggled to keep hold of him.
"I thought I was going to let go of him as I didn't think I'd make it to the surface myself," he said.
"I'd exhaled all the air in my lungs. I swum through the pain and the fact I thought I was going to drown - dragging a body through the water was hard."
Four women on the beach performed CPR on the victim before medics arrived and he was flown to hospital.
Mr Wiley added: "I honestly thought he wasn't going to make it - he was down there for about four minutes.
"I'm replaying it over in my head. I can't explain how hard it was."
Mr Wiley, who was paddleboarding in the sea when he saw the people dive from the cliffs, said the man wasn't wearing any protective clothing and the cold water shock alone was enough to "take the breath out of your lungs".
Lulworth Coastguard said that four people had been "encouraged by crowds on the beach" to jump from the 200ft rock arch, leaving one casualty "very unwell" and with serious injuries.
Councillor Vikki Slade, the leader of Bournemouth, Christchurch and Poole Council, wrote to local MPs and the chief constable of Dorset Police following the incident at the limestone arch of Durdle Door.
“Three weeks ago, following the Prime Minister’s announcement that people could travel wherever they liked as long as they did not stay out overnight, we discussed the possibility of limiting travel distance,” she said.
“We were told clearly that this was not possible.
“We saw the most awful scenes in Durdle Door with the arrival of two helicopters to deal with the stupidity of people jumping from the top of cliffs, cheered and clapped by thousands of beachgoers.
“We have seen crowds on our beaches, in large groups clearly not from the same household, we have had council officers spat at, abused and intimidated as they go about their work, and I am asking you all to go back to ministers in Westminster and ask them to put a travel restriction on England, as they have done in Wales and Scotland.
“In those devolved nations you can only travel five miles from home for reasons other than work or risk fines, and I am asking that a similar policy is brought in for England with immediate effect.”
