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SESK: Stuff Everyone Should Know · sesk.info/swim-dive-only-9-feet-deep

How deep does the Red Cross say water must be before you dive in head first?

At least 9 feet, clearly marked safe, with no obstacles.

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  1. At least 3 feet
  2. At least 5 feet
  3. At least 9 feet ✔

Why: Shallow water and hidden rocks can cause serious head and neck injuries. The Red Cross says to dive only where water is marked safe for diving, at least 9 feet deep with no underwater obstacles.

Huh, didn't know that: The Red Cross says never to dive head first into surf at the beach.

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Why did the diving board get a gold star? It always knew how to spring into action.
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References

Answer: At least 9 feet. Shallow water and hidden rocks can cause serious head and neck injuries. The Red Cross says to dive only where water is marked safe for diving, at least 9 feet deep with no underwater obstacles.

  1. American Red Cross: Lake and River Safety www.redcross.org/get-help/how-to-prepare-for-emergencies/types-of-emergencies/water-safety/lake-river-safety.html
    Dive only in water clearly marked as safe for diving, at least 9 feet deep with no underwater obstacles.
    Checked 2026-10-12.

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