Three men who cut through a Hamilton school's fence to swim starkers in the middle of the night are being sought by police.
The men made holes in Te Rapa School's wire fence to gain access to the cool water during the January school holidays.
The school's security camera only snapped one photo of the culprits splashing about at 1am, but the damage left in the fence each time shows there have been multiple midnight dips.
Waikato Police constable Mark Soffe said it appeared to be local Hamilton ratbags.
The school thought it was probably the same culprits taking a midnight skinny dip, but could not be sure.