Japanese boarding the tour bus
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Japanese take volunteer trips to clean up after tsunami

31 August 2011 Last updated at 18:13 BST

Hundreds of people in Japan pay to sleep on a bus just to wake up the next day to work for free helping clear up after March's earthquake.

The journey takes 12 hours each way, but there's still a lot to be done in Ishinomaki and other cities in the North-East of Japan destroyed by the tsunami.

Elise Wicker reports.