The zip wire at Manor House play area is closed after thieves stole the seat and chain.
Between noon on Monday, 15 July and 9am the following day, the two items were taken from Gallows Hill Lane, Abbots Langley.
Abbots Langley Parish Council said CCTV is being checked.
Anyone with information about the theft is asked to contact police on the non-emergency number 101, quoting crime reference 41/64550/19.
You can also report information online at herts.police.uk/report
Sorry the zip wire in Manor House play area is out of use. Last night vandals removed the seat and supporting chains. If anyone has any information pls advise @AbbotsPolice crime no. 41/64550/19. CCTV is being checked. #AbbotsLangley pic.twitter.com/F8zJXVNo5y
— Abbots Langley PC (@AbbotsLangleyPC) July 16, 2019
In recent weeks vandals also damaged new play equipment and the destruction of plants at Leavesden Country Park.