Coast - Season 4 (2009)

We visit Cork Harbour, Titanic's last port of call before sailing to disaster, to hear the story of one lucky Irish passenger who had to reluctantly disembark at Cork. Alice Roberts meets Waterford Crystal's chief scientist to learn how to turn the local beach's sand into glass. Hermione Cockburn creates her own mini earthquake on Killiney beach with a mercury dish and some dynamite, recreating an experiment performed 160 years ago that led to the understanding of the earth's tectonic plates.

Blackpool is Britain's most visited seaside destination. How has the resort succeeded when others have gone under? The pleasure park is one of many innovative attractions imported here from America. Neil Oliver views the coast at high speed with a visit to the RAF's world famous "Pilot Factory". As he takes to the skies in a Hawk Jet with an instructor, can he travel from Anglesey to Blackpool and back in just under half an hour?

The Sea Eagles of the island of Canna were hunted to extinction, but now they have been brought back. We climb into one of their nests perched high on a steep cliff to find out what their chances of survival are. Neil Oliver visits Europe's biggest super-quarry to receive an explosive lesson in how the rock is mined. Armed with a simple ruler on a Scottish beach, Nick Crane learns how the challenge of measuring our coastline led to a new branch of maths that could help our mobile phones get smaller.

In Coast's Norwegian odyssey we explore how the Ice Age is still affecting Norwegians today; a collapsing mountainside threatens to thunder down into one of the country's most beautiful fjord's creating a devastating tsunami. Nick Crane visits the little town of Geiranger which sits in the path of the impending tidal wave.

On Holy Island, we find out how the Vikings inadvertently united the Anglo-Saxon kingdoms, creating a new national identity as they came together to resist a new enemy. Mark Horton navigates to Marine Esplanade in Ravenscar in search of the "town that never was". Destined to be a buzzing Victorian seaside parade, Mark uncovers why it is now just an empty field. Following three unsuccessful attempts to land a boat on Bass Rock, Miranda Krestovnikoff beats Neil Oliver to the challenge and is rewarded with a front row view of the diving gannets.