He represented New Zealand from 1999 to 2008, attending World Championships and the Olympics, while being part of the silver-medal winning 2006 Commonwealth Games team.
Winitana played in the Australian NBL with the Breakers and the Adelaide 36ers.
Berridge said the school holiday camp is open to all basketball players, not just HoopClub members.
Entry is $40 but there are discounts for multiple family members.
Tuesday, July 23, is for juniors aged 5-12 years old, while Thursday, July 24, is for Seniors 13-18 years.
Doors open at 8.30am on both days at the Wanganui Community Sports Centre, with camp starting at 9am and finishing at 4pm.
Children will need to bring lunch, water bottle, a change of warm clothes and can bring their own basketball.
Email whanganuihoopclub@outlook.com for a registration form or Berridge on 021 265 8536.