Does it take more effort to swim in the deep end of a pool than the shallow end? - BBC Science Focus Magazine

Scuba Diver #62 by scubadivermag - Issuu

Getting faster

Why does a swimming pool apparently appear to be shallow? - Quora

RLSS UK Lifesavers Magazine - May 2023 by RLSS UK - Issuu

Get Inspired: Build your fitness in the swimming pool - BBC Sport

What Makes a Pool Fast? – Coach Rick – Mighty Tritons Swimming

Stop Swimming In The Shallow End Of The Relational Pool!

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Is it easier to swim in deep or shallow calm water, or are these the same? - Quora

Changing Depth of a Swimming Pool: Benefits of Shallowing the Deep End