Many thanks everyone.
Some very good examples there.

A few of them I already use for my workshops.

I shall endeavour to dig out some sea songs (forebitters) to suit the age group.

I wrote this one myself - What think you?

Tommy A Tall(Ship)Story!

Tommy would a-sailing go
Across the sea, across the sea.
Tommy would a-sailing go,
All on a summer's day.
He joined his ship in Swansea Town;
It was a ship of great renown.
He sailed the wide world three times round
All in the month of May.

Tommy sailed East and Tommy sailed West
Across the sea, across the sea
Tommy sailed East and Tommy sailed West,
All on a summer's day.
On Monday he sailed from Swansea Town
In that ship of great renown
On Tuesday he docked in New York Town,
All in the month of May.

Tommy he drunk a barrel of rum,
A barrel of rum, a barrel of rum.
Tommy he drunk a barrel of rum
All on a summer's day.
He dance a jig and a hornpipe too,
With the captain, the bosun and all of the crew
On the tops'l yard whilst a hurricane blew!
All in the month of May.

Tommy, he was homeward bound,
Homeward bound, homeward bound.
Tommy, he was homeward bound
All on a summer's day.
A storm did rise with a terrible roar,
The masts and yards were there no more.
So Tommy he rowed the ship to shore,
All in the month of May

Tommy, he became a captain bold,
A captain bold, a captain bold,
Tommy became a captain bold.
All on a summer's day.
He took aboard his pet kangaroo,
An old seadog and a packet rat too.
And the cook, he made one heck of a stew
All in the month of May.

Tommy he came from sea,
Home from sea, home from sea.
Tommy he came from sea,
All on a summer's day.
One day, when drinking in Swansea Town
He staggered out of the Rose and Crown;
He fell in a puddle and Tommy was drowned,
All in the month of May.

Dave R.