The Esk Valley Orienteering Club discovered on Wednesday last week that its store had been broken into, but nothing appeared to have been stolen.

Then between Saturday and yesterday, burglars twice broke into the Riverside Tennis Club.

The clubs are on the same block, near the West Tamar Council Riverside branch office in Eden Street.

Orienteering club secretary Peter Hoban said that last week's burglary was the third time the club's windows had been smashed in the past couple of months.

"We are not aware of anything stolen at this time, but we do know that entry was made," he said.

Tennis club president Rod Meldrum said it was a nuisance for the club to have to clean up two lots of mess, including broken locks and smashed windows, in as many days.

The club's burglaries were overnight between Saturday and Sunday, and Monday and yesterday.

But Mr Meldrum said it did not appear that anything had been stolen.

"We have not had a break-in at least in the past 10 years," he said.

"Fortunately, we don't keep money on- site, so they wasted their time."

Mr Meldrum thanked West Tamar Council for organising repairs to the council-owned property.

Police are investigating the burglaries and urge anyone with information to call Crime Stoppers on 1800333000.