We are a family of competitive swimmers/water polo with some captains in family.
Those of us that were assigned pool care and later as life guards will never "own" a pool again IF there's public swim water available at normal hours.
All our house designs that include a pool get Owners introduced to our local All American swimmer/Landscape Architect for pool design.
He begins with USE and goes from there.
Some have been lap pools w/side SPAs (min. 25yrds long, flat walls for flip turns)
Others have been volleyball party pools
One was a beach-walk-in free-form wading type
All have legal concerns and death threats, as mentioned prior
That said, as a party pool design and lazy afternoons at home, ignoring details such as depths/etc. the USE will determine in time thinking - I wouldn't change a thing. I love the idea posted about lighting & sprays, the latter could be the cooling solution in some climates. The last pool design-builder fountains/pumps expert was/is an AA Captain near College Station - contact me for name.
Short-hand answers here ... long-hand help here ....
http://pages.suddenlink.net/tgivaughn/