A Sheffield student spoke of her relief after she saw a man rescue a baby shark from shallow water while she was on holiday.
Passer-by Grace Brown, 19, was among a group of shocked witnesses who saw the unnamed hero wade out to rescue the stricken animal.
The 3ft creature was trapped in the harbour at St Ives, Cornwall, when the tide went out yesterday.
The video shows the daring moment a brave animal lover picked up a stranded shark - and carried it safely out to sea.
The unknown male was seen scooping up the baby fish into his arms and dropping it back gently into the ocean.
Despite trying to get officials to help, by-standers were told there was nothing that could be done.
But stunned on-lookers watched in amazement as the member of the public emerged from the crowd and put his personal safety aside to rescue the baby man-eater.
In the video the shark can be seen swimming around the ever decreasing waters, cut off from the open waters outside the harbour wall.
Just before the water levels became too low for the creature the rescuer is recorded wading in before hauling it up into his arms and carrying it to safety.
Grace said: “I was on holiday with my family, staying in a flat in the harbour, and had seen the shark swimming around earlier on in the day.
“Some guys in kayaks had tried to grab it, but then we lost sight of it and didn’t think any more of it.
“Then later we saw lots of people gathering around, and my dad went down to the lifeboats to see if there was anyone who could help it.
“He spoke to the people at the lifeboats, and they called the harbour master, but they said that there was nothing they could do, and that the shark would sort itself out.
“We were trying to think of who we could call to get the shark some help, then this guy went out into the harbour and grabbed the shark.
“The shark was thrashing about, but because he was quite small the guy was able to pick him up and carrying him back out to the sea.
“He was just a member of the public and looked like just a normal guy.
“I was thinking that I was ready to go down to see if I could help, but then this guy had his shoes on and went to help.”
The drama was witnessed by a crowd of who had gathered overlooking the habour and Grace said everyone was nervously watching on to see how the shark reacted.
She said: “The shark was about three feet, it wasn’t very big, but still the guy was very brave - he didn’t know how the shark would react when he picked it up.
“I was really happy he saved the shark, I was worried it would be stranded and die.
“I was happy that someone had done something, everyone else just stood around watching.
“It restores your faith in humanity when you see someone acting, instead of just filming it on their mobile phones.”