THE principal of Samuel Gilbert Public School will take a plunge into cold water: all in aid of getting his school extra technology supplies.
Andrew Bowmer has agreed to participate in the "Dunk the Principal" attraction at the Castle Hill school's fete on August 19.
The event will raise money for laptops and wireless internet at the school.
Along with novelty games, the fete will include an international food court, market stalls, performances, pony rides and carnival rides.
There will also be food, jewellery, clothing, crafts and other stalls, as well as activities like cupcake decorating and candle making.
"It's designed to be a big community event and a lot of fun," Mr Bowmer said. "We have lots of performances from groups in the school community."
The school's concert band will open the day at 10am, followed by performances from visiting groups such as DefinateLee Dance Performance Studios and Hills District Tae Kwon Do.
Previous fetes funded interactive white boards and airconditioning in every classroom.