Three teenage boys were given a stern talking to after being spotted dicing with death by lifeguards. They were seen dodging waves crashing on Portreath Harbour and then jumping into the swell.
The lifeguards called the Portreath cliff rescue team at about 2.40pm on Friday afternoon because they were concerned about the safety of a group of boys.
They informed the coastguards that there were some youths standing on the end of the pier "dodging the heavy seas breaking over it".
A spokesman for the cliff rescue team said: "When we arrived in the car park, two of the boys, 13 and 15, had returned back to about halfway along the pier.
"Despite the outgoing tide, they then jumped into a passing swell and luckily managed to swim ashore."
They said they teens were met at the top of the slipway off the beach and harbour wall and "given suitable advice as to the dangers of going out on the pier in heavy weather and also jumping into the sea as the tide is ebbing".
On the teams Facebook page some people have criticised the boys.
Jilly Richards said: "Crazy season again, already a young life lost at Newquay . Fines should be imposed for calling out the rescue services. Would they think twice then?"
Last week 27-year-old holidaymaker Oneil Din died after being rescued from the sea at Newquay.
He was among a group of three males who got into difficulty after being caught in a rip tide and swept out to sea at Crantock Beach at around 7.30pm on Tuesday night (August 15), according to the Coventry Telegraph .
The three, who were holidaying in the area, were rescued from the water by two local surfers and then airlifted to Royal Cornwall Hospital l in Truro by the Coastguard helicopter.
Mr Din, from Coventry, was pronounced deceased a short time later.
The other two swimmers, aged 17 and 18, remain in hospital but are not believed to be seriously injured.
But Geoff Allbright said it would not make a difference. "These guys (the teens in the video) have no perception of what the sea is capable of. Those of us that are familiar with such things make a subconscious observation and decision about the state of the tide, swell, currents, etc.
"I think a tourist education film or brochure would do more good."
But Ms Richards argued that there have been warning around and publicity of the dangers and she still sees people flouting flags on beaches.
The team arrived back at the station about about 3.10pm.