But only for 24 hours.
You would think up to 10 teens could survive a day's imprisonment, but there are a couple of catches.
Their ''prison'' measures only about 16 cubic metres.
And they have no access to any form of technology.
Year 10 Dunstan High School pupil Grace Wells (15) thinks the experience - which will raise money for the Alexandra and Districts Youth Centre Easter camp in Christchurch next year - will be ''awkward and weird''.
She and about nine others will be confined in a cage made from deer-fencing provided by Fulton Hogan, with a five-minute walk and toilet break every hour.
They were locked up at 7pm yesterday and will be released at 7pm today.
Participants will not be allowed any form of technology and food will be confined to basic, healthy meals.
Organiser and youth worker Jess Laurent (24) said the pupils would have to work on their communication skills.
''They are not allowed to bring board games or cards, no exciting or nice food ... they are going to have to be creative.''
Grace predicts that by the end of the 24-hour lock-up, group members will be ''completely'' sick of each other.
''As everyone says, for a teenager their cellphone is like another limb.
''I think it's going to be a big challenge not to Facebook, or something like that. We are going to have to talk to each other.''
On the other hand, 14-year-old Joseph Murphy is relaxed.
''I'm not worried about anything - except maybe someone watching us sleep.''
The cage which is home for 24 hours for the group of year 9 to year 12 pupils is on Pioneer Park, between Central Stories and the CBD park playground.
Ms Laurent is encouraging people to visit during the event.
She said youth workers would be present on the site the whole time.
Each pupil locked in is aiming to raise as much money though the event as possible, in order to reduce the cost of their camp.
Other fundraising events are planned for next year. People can donate at the event or by contacting Ms Laurent.
Locked away
What will you miss most during your 24 hours in the cage?
Grace: ''My phone and talking to people in the world outside of the cage. And good food. I'm pretty attached to my iPod.''
Jess: ''I will not be in the cage, but I will probably miss out on a lot of sleep.''
Joseph: ''Music and Xbox. Otherwise it will be pretty easy''
