Tidal Seas/ Coasts

Until now we've only touched the surface…
We know more about the surface of the moon than we do about the deep oceans, yet the sea covers two-thirds of our planet. The Blue Planet: Seas Of Life reveals the sea and its communities at their most fearsome and alluring.

"If there were a Nobel Prize for wildlife filmmaking, these producers would get it" - Wall Steet Journal

Tidal Seas
The sun and moon move billions of tons of water with every turn of the tide. The strongest tides empty entire bays, smash trees on riverbanks, and strand sea creatures on suddenly dry land. Weaker tides control the movements of huge numbers of fish, coaxing schools of giant stingrays through astounding underwater arches. And as the water recedes, the tide can create unbelievable landscapes- like a sparkling world of salt crystals inhabited only by tiny shrimp and bright pink flamingos.

Coasts
From rocky cliffs to gentle dunes, the coasts are always changing. Day in and day out, they are battered by crashing waves. Seabirds come here by the thousands to nest, while baby turtles hatch and race to the sea, pursued by hungry predators. Young sea lion pups are born and play on the sand-until a killer whale attacks, crashing in on the surf. But when breeding season is over, life returns to the sea and the shores are empty once again.

Narrated by David Attenborough