"As in most cases, the perpetrators of these crimes are a minority. However, the effects of their thoughtless behaviour impact on the remainder of our residents, visitors and certainly the morale of our very hardworking and dedicated staff."
Naude said his team continued to manage the rebuild of the Lake Aniwhenua ablution block after it was destroyed by vandals in October.
"These senseless acts are becoming more prevalent, and it is a costly and time-consuming process to re-establish the facilities so our communities and visitors can use them.
"We are entering a busy summer period and it is embarrassing that these facilities are not functional," he said.
Anyone who has information on either of these incidents is encouraged to call the NZ Police non-emergency line on 105.
Naude said they urged the public to report any suspicious behaviour in the district.
"Vandalism should not be a form of entertainment; it's a serious offence that has wide-reaching consequences for our communities."