Four greens and the nursery green were damaged on Thursday night.

The wet conditions meant that fairways were also gouged in the attack.

It was the fifth such course invasion in five years and, this time, it has prompted a swift response from the club.

? Excavation works are being planned to prevent vehicular access to the course;

? a 24-hour caretaker has been appointed;

? additional security measures such as CCTV are being considered; and

? a $2000 reward has been offered for information leading to the conviction of the offenders.

Morisset Country Club chief executive officer Ian Taylor said the club's members and staff were angry but determined to prevail.

"We are not going to be beaten by these vandals," he said.

"We are getting right on top of this."

Mr Taylor said the club would immediately create a series of permanent barriers to prevent off-road vehicles from accessing the course.

"We are undertaking major excavation works to make it virtually impossible to access the course proper," he said.

"We are immediately providing a dwelling for an on-course caretaker who will have direct access to security guard back-up in minutes."

Mr Taylor responded to criticism that the club had been slow to adequately address the recurring problem of vandalism.

"Sometimes, the cost of the cure can be worse than the disease," he said of earlier acts of vandalism.

But Thursday's attack was a tipping point.

On Friday, the club convened a critical incident meeting of club officials, members and paid staff.

Emotions ran high and a range of responses was discussed at length.

In addition to the immediate response measures outlined, the club was also considering the installation of lighting and CCTV, Mr Taylor said.

The latest vandalism came at a bad time.

The course was damp, the slower growing months are approaching, and club membership renewals are soon due.

The repair bill and the loss of revenue will each cost the club "thousands of dollars", Mr Taylor said.

The greens on holes No 4, No 12, No 15, No 16 and the nursery green were damaged.

Temporary greens will be in play on two of the holes, while the other two will remain in play with designated drop zones and local rules applied.

Course superintendent Nathan Reynolds said the vandalism was "heartbreaking" for greenkeeping staff.

"It's difficult to understand how so much hard work can be ruined by two minutes of fun for someone," he said.

The affected greens will be back in full play sooner, but it would be "at least 12 weeks" until the damaged greens were completely repaired, he said.