Tsunamis come in many forms. And science is only just coming to grips with their complexity and their astounding power.

Survivors accounts of the most devastating tsunamis of the past 50 years.

Meet 86 year old Marsu Mcshae - the only survivor from the 1946 tsunami that hit Lapahoihoi on the big island of Hawaii.

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Hseushan Tunnel - Discovery Asia, 2006

One of the most ambitious and dangerous tunneling operations ever attempted.

Claiming 25 lives, this project was completed not by money and technology - but by grit and determination.

Meet three survivors of a deadly tunnel collapse.

Taiwan's highest ever rating TV show.

Mermaid - Live Earth, 2007

A little girl who thinks she's a mermaid telling the story of her changing world. An intimate portrayal describing a complex issue through the innocence and simplicity of youth. Screened to 2 billion people at the July 2007 Live Earth event.

The Rewind - Live Earth, 2007

Designed for stadium broadcasts - this is the story of life in the sea told in 2 minutes. The future may be in trouble - but today we have a choice.  Also screened to 2 billion people through the 2007 Live Earth events.

Reef Route 66 promo - Independent, 2005.

The largest mass breeding event on the planet - the annual coral spawning on Australia's Great Barrier Reef. This film takes a rocking sound track to the life cycle of a coral reef.