Mary McNeley, 82, came to watch and sat outside the fence that surrounds the 25-meter-long, six-lane pool.

“This is wonderful,” she said.

Parks and Rec held a similar event at Cook Park Pool,  7100 E. Cherry Creek Dr., on Aug. 13.

Reid said people moved in and out of the pool at Berkeley with their dogs quickly, spending up to 30 minutes or so, and were replaced by others.

“If we get too crazy, we hold the line up,” she said.

Once the event ended, she said, “that will be the end of the season. Pool maintenance will start draining the pool tomorrow. Summer’s over.”