Grain was grown in the nearby flat zones and valleys.

Also in north Antrim are the Carrick a Rede Rope Bridge, Mussenden Temple and the Glens of Antrim.

And I think of this as kind of a moral landscape, with peaks and valleys that correspond to differences in the well being of conscious creatures, both personal and collective.

Some words and phrases are shared with Scots Gaelic, and the dialects of east Ulster those of Rathlin Island and the Glens of Antrim were very similar to the dialect of Argyll, the part of Scotland nearest to Northern Ireland.

With vibrant video clips captured by submarines, David Gallo takes us to some of Earth's darkest, most violent, toxic and beautiful habitats, the valleys and volcanic ridges of the oceans' depths, where life is bizarre, resilient and shockingly abundant.