Police are investigating arson attacks at North Shore Golf Club in Skegness.
The fires were started during the evenings of August 15 and 16 at sheds and outbuildings at the club.
A group of male and female youths were seen in the area of the club on North Shore Road at the time of the incidents.
Investigating officer DC Emily Wooll-Rivers said: “Arson is an offence that is taken extremely seriously and a number of lines of enquiry, including forensic opportunities, are currently being pursued. I would encourage anyone with information about the incidents to attend Skegness Police Station and talk to us at the earliest opportunity.”
Anyone with information should call DC Wooll-Rivers on 101 quoting incident number 104 of August 16 or Crimestoppers anonymously on 0800 555 111.