The mother of a four-year-old boy from Kettering, lost at sea says she is "devastated" but told ITV News she will stay in Burnham-on-Sea for "as long as it takes" until her son is found.
Dylan Cecil was on holiday with his family when he walked on to the jetty in Burnham-on-Sea, Somerset, to get a closer look at the sea.
But he slipped off the side and disappeared beneath the muddy water at around 6pm on Sunday.
His parents desperately tried to rescue him, but were unable to reach their son and had to be pulled from the water by passers-by.
Rachel McCollum says she "just can't rest at the moment until he's back."
"I haven't got closure, he's still lost. What can I do?"
She described the last time she saw her son:
– Rachel McCollum
"He was playing at the end of the jetty and was less than a metre away from me, and he slipped - lost his footing, and went under.
"I jumped in straight away, as did his dad, and we both got took in by the whirlpool."
"He just went straight under. He never even came back up for air."
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