Living surrounded by pools and the ocean, many children in South Florida grow up learning to swim to prevent the unthinkable. But experts warn of another dangerous — and potentially deadly — threat lurking under the water: shallow water blackout .

That nightmare scenario played out for a local family back in June. They say that if it wasn't for the instant actions by family members and neighbors the outcome could have been so much worse.

Dylan Smith is an 8-year-old adventure seeker who could be described as a ball of energy. He loves to chase reptiles and loves playing basketball and to swim , his family said.

In June, the boy was swimming the length of his pool – back and forth – holding his breath the whole way, his mother, Tiffany Graver-Smith, recalled.

He succeeded a fe

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