"by the poolside" is a perfectly grammatical phrase that can be used in written English.
For example, "We spent a relaxing afternoon by the poolside, soaking up the summer sun."
There by the poolside, in a pink shirt and sport jacket, was Donald Trump Jr., the president's eldest son.
It was considered an alternative to what most college students did on their vacations: spending idle time by the poolside.
We watched the moon rise as we swam and, by the poolside, enjoyed a crepuscular glass of Cava.
"Isn't it by the poolside that Benjamin is told of the wonders of plastics?" Dr. Gabbard said.
There were open tables by the poolside, and only half the spots along the terrace were filled.
After all, with all leverage I supposedly have in the market, shouldn't I just be sipping martinis by the poolside while waiting for tenant offers to roll in?
Arriving on a Sunday afternoon, I found the poolside area occupied by several couples, one playing music just loud enough that it was impossible to ignore.
And then there are the champagne toasts at 10am, the poolside parties mobbed by a thousand VIP-card-flashing chancers, the sponsorships by condo developers and the private jet timeshares.
Dinner was spent in the poolside restaurant with a Mediterranean to Michelin theme hosted by the Chef.
Definitely one for the poolside.
Another grips the poolside ladder.
