The Fire and Rescue NSW crews were there to battle it out in the second round of the firefighters' championship series.

The firies - on call and able to respond to emergencies - took part in a series of challenges on Saturday and Sunday designed to test their skills deploying firefighting and rescue equipment.

Although the ground was a bit slippery, the 19 FRNSW crews, plus a NSW Rural Fire Service team from Kootingal, made scaling ladders and perfectly targeting hoses look effortless.

Chief superintendent and championship assistant director Neil Harris said it could get very competitive as the teams tried to beat the clock and use new techniques.

"It's getting their skills down to the last split second, because there could be a hundredth of a second between coming first and second," he said.

The competition also gave firefighters an opportunity to hone their skills before they met a similar situation in the field.

"Our firefighters who compete on a regular basis are very comfortable at a fire site," said Chief Supt Harris.

"No matter what is in front of them, no matter what incident they come across, they don't have to stop and think - they can just react."