Vandals struck at a popular park, damaging children’s play equipment.
Police are appealing for witnesses after the incident at the Helix Park.
It was targeted overnight on Sunday when offensive graffiti was written on a child’s chute, wooden pyramid, notice board and other play items.
Sergeant David Ferguson said: “This vandalism has caused a significant damage to a popular child’s play area, which will now need to be repaired at significant cost.
“We will not tolerate this type of damage to local community facilities and are appealing for information to catch those responsible.”
Neil Brown, general manager of Falkirk Community Trust which runs the park, said: “The Adventure Zone is very popular with our visitors, especially young children, so we were very disappointed when we discovered this act of vandalism.
“Our staff will continue to monitor the area closely and we will work with Police Scotland to ensure that The Helix remains a safe, fun environment for visitors of all ages.”
The vandalism came days before celebrations to mark the first anniversary of the Kelpies opening to the public.
Anyone with information can contact police on 101 or call Crimestoppers on 0800 555 111.