School principal Stuart Kawau said the school had reached a semifinal once and the plate finals twice but had yet to win a national title.
"The guys loved Craig's shortened version Quickdraw and were excited to have contact with someone with his knowledge of the game," Kawau said yesterday.
"He probably came to us first because we are the only Wanganui school to send teams to national secondary schools championships, but what he is trying to achieve can only be good. It will mean more support for younger players to draw from.
"Indoor bowls is a great game because it doesn't require super fitness and is designed for any gender," Kawau said.
Whiteside has represented Bay of Plenty and Tauranga over the past 40 years and concedes that there is a perception the game is for the older generation.
"When people say that to me I can quite truthfully say 'have I got news for you'. Last year we managed to increase junior numbers from 61 to 146 in three indoor bowls districts at home. And, in 2011, our involvement in the Aims Games programme increased school participation from seven to 28."
Regular coaching sessions in his home district have also helped to increase the number of youngsters playing the game.
"Wanganui juniors are very fortunate to have rep players as coaches - it's something we don't see very often," Whiteside said.
His visit was supported by Sport Wanganui and the Wanganui Indoor Bowlers Association.
Association president Brendon Kenny accompanied Whiteside and his wife, Robyn, during the visit and will take over the programme in this district.