According to Mission Australia's 2015 Youth Survey, the two most common concerns that teenagers have are coping with stress and school or study concerns.  One of the best ways of dealing with stress is to be more active.  Here are some ideas:
Go for a walk/run 
Go swimming at the beach or local pool
Do a pilates, yoga or zumba class (check out your community recreation centre)
Go ice skating
Ride your bike
Lift some weights while you watch TV
Grab and friend and a frisbee and go to the park
Join a sports team - basketball, netball, softball, hockey...
Go kayaking or stand up paddle boarding (you can often hire them by the river)
Go skateboarding or rollerblading
Find a set of stairs to walk up and down
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