odinthor says...
"It's starting to look to me as if the "Olympic" designation might just be fairly modern advertising ballyhoo by the hotel."
And he might be right.
from the LA Times 10/31/93
Here's a reference to the 'Olympic-sized pool' in the book,
Built to Last by Stanley Turkel.
(a book about hotels which are 100+ years old)
The 'Olympic-sized swimming pool' seems to have taken on a life of its own.
.