Ah, this is how I got into folk music. I love sea shanties and sea songs. My favorites to sing are "Rollin' down to Old Maui" and "South Australia." Last year I heard an Aussie group sing the latter and the tune had migrated to something different that the US version. Very interesting.There is a song about the black hills of eastern Canada (Nova Scotia?), but I can't think of it now and haven't heard it in years.
I really like Pint & Dale from Washington state. They sing sea songs and shanties. He plays mandolin & she plays hurdy-gurdy.