I believe, the opening tune, was used on a 30 (22) minute television (B&W)series sponsored by Disney through the "Mickey Mouse Club" in the late 1950's and lyrics, similar to these, accompanied the tune.

rough LYRICS:
The boys of the western sea
Are a rolicking company
They will get things done
While, they have some fun
The boys of the western sea.

Film setting in a fishing village, (manual oars) in the Northern/Outer UK mainland or islands.

Sincerely,
Gargoyle