Whanganui's Kowhai Park skate bowl looked more like frying pan than a skate park on Monday, as thick waste oil from the nearby go-kart track was spread across the concrete.
In a social media post, Whanganui District Council said around 20 litres of oil was spread across the bowl overnight on Sunday, with the culprits still on the loose.
On Monday Michael Wilson, owner of neighbouring Riverland Family Park, found his go-kart track covered in oil, the second time in three days it had been targeted.
It began on Friday when Wilson discovered two youths with bottles of oil on the premises.
"On Friday there were these two little kids pouring oil on the track," Wilson said.