During three hours of picking, the Linden youths gathered 15 sacks, close to 30 kg, with rubbish around the bathing areas.

Helping in this way gives young people a better environmental thinking, says Anna Gisslander who is a parent representative.

- If you pick like this, you understand how much rubbish people throw away and get attention.

I have seen the change in the team, both from parents and young people, how to think about throwing the rubbish in the trash, she says.

Hear more in the clip about garbage collection.