Press Release – Kennerley Gourmet Grocery Today the Celebration Box Netball NZ U18 Champs begin in Rotorua, New Zealand. The four day competition will run until 22nd July, and will see forty of the top U18 netball teams from around New Zealand coming together to take out the title. Netball … Today the Celebration Box Netball NZ U18 Champs begin in Rotorua, New Zealand. The four day competition will run until 22nd July, and will see forty of the top U18 netball teams from around New Zealand coming together to take out the title. Netball New Zealand is excited to announce Celebration Box, as the official naming rights sponsor for the tournament.