A mock emergency involving injured victims on land and sea will involve about 75 people on Whangarei Harbour this weekend.
Police, firefighters, Ruakaka Surf Lifesaving, St John Ambulance, NZ Red Cross, Whangarei Coastguard, helicopters and the Northland Civil Defence Emergency Management Group will all participate in the "incident" on Saturday.
The exercise is the culmination of a four-week training programme for 15 young people.
The students, nominated from within the Bream Bay and surrounding communities, have been building hands-on emergency services skills through the national Youth in Emergency Services (YES) programme.
The programme is designed to strengthen the connection between young people and their communities and is funded by the Ministries of Youth Development and Civil Defence and Emergency Management.