The man, who asked the Daily Liberal for anonymity, waited two hours for the test but has no complaints given the "helpful, friendly and caring" health professionals and volunteers he encountered.

"It's a very, very good service given the current circumstances," he said.

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The resident pulled into the showground via its Wingewarra Street entrance about midday on Tuesday to find hundreds of vehicles in front of him.

"I was met by a volunteer who told me there was about a two-hour wait and who showed me where to go," he said.

"Because it was really crowded I was directed onto the harness racing track.

"There were four rows of cars moving around the track together.

"Eventually I got back to where I entered the track and was waved forward to a parking area where sideshow alley operates during the annual show."

The resident was then directed to drive towards the two pavilions being used to conduct tests.

"As I got closer to the pavilions a very nice person in PPE (personal protective equipment) gave me a Medicare form to fill out and sign," he said.

"Then the four rows of vehicles split into two rows of two vehicles to enter the pavilions."

The resident counted 12 vehicles in the pavilion he entered with "six cars in each line".

"Clinicians in full PPE were taking the forms and checking details," he said.

"I was asked to open my mouth and wiggle my toes.

"When my nose was swabbed the advice was to wiggle my fingers.

"I appreciated the effort made to distract me."

About 2pm the man drove out of the pavilion and the showground via its Fitzroy Street gate.

"The time just went," he said.

"I ate my lunch on the harness racing track, listened to the radio, talked to the volunteers and moved forward and before I knew it, I was in the pavilion and being tested."

The resident told of "scores of volunteers" and Dubbo Regional Council staff supporting the clinicians.

"They are all working long hours and serving the community selflessly," he said.

"They deserve our thanks."

The man noticed "plenty of children" getting tested and their parents keeping them settled during the wait with snacks and activities.

Testing at the showground is conducted from "8am to close".

Walk-in clinics at Manera Plaza and Pioneer Park operate from 8am to 4.30pm and 9am to 4pm, respectively.

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