Cambodia's beautiful temples and dark history attracts tourists from across the world.

But many of today's holidaymakers want to do more than sightseeing, with a growing number volunteering their time, energy and skills for free.

From schools to orphanages, they hope their efforts will have a positive impact on the country. But critics claim that such good intentions are having a negative impact, with some orphanages creating a booming business trading on guilt.

There are reports of orphanages using children with parents to pose as orphans, of wealthy tourists depriving local workers from getting much-needed jobs, and of orphans forming emotional attachments to volunteers and facing more trauma when they leave.

On this edition of 101 East, we ask if volunteer tourism does more harm than good for the people of Cambodia.

This 101 East episode can be seen from Thursday, February 10, 2011 at the following times GMT: Thursday: 2230; Friday: 0930; Saturday: 0330; Sunday: 1630.