Both the Puhinui Stream, that winds through and under Auckland's southwestern suburbs, and Otara Creek have become strewn with domestic discards such as washing machines, fridges, couches, bikes and trolleys.
"People often forget that our streams feed into the sea, so if we want to continue enjoying them for recreation and fresh seafood, we need to keep our own backyards clean. This is about so much more than a local clean-up attempt.
"It's an opportunity for families, community groups, businesses and the wider community to join together to help change attitudes and establish good habits," Mr Bakker said.
Volunteers will meet at Auckland's Botanic Gardens between 8am and 9am on April 30 and it's anticipated the clean-up will be done by 12.30pm.
• People can register at: http://www.beautifulmanukau.org.nz/new-zealand-record-attempt.html