We follow Atlantic grey seals through the year, from courtship to pregnancy and birth. Will a curious snowy-white seal pup make it safely through to adulthood? Show more
First broadcast: on BBC One Wales HDLatest broadcast: on BBC Two Wales HD
The strange environment of the shallow seas is one that sits remarkably close to shore. In the giant kelp forest, we join a female catshark as she lays an egg deep in the forest floor. Show more
First broadcast: on BBC One WalesLatest broadcast: on BBC Two Wales HD
As the water starts to warm in the summer, marine giants arrive at the Celtic deep. Some have travelled for thousands of miles to feast on plankton and abundant shoals of fish. Show more
First broadcast: on BBC One WalesLatest broadcast: on BBC Two Wales HD
Presented by Dame Sian Phillips, this episode looks at some of the biggest challenges and issues facing the marine environment in Wales and the rest of the world today. Show more
