This poem can be sung to the theme song of Gilligan's Island
Here's the first couple of verses so you can sing along:

It is an ancient Mariner,
And he stoppeth one of three.
"by they long grey beared and glittering eye,
Now wherefore stopp'st thou me?

The Bridegroom's doors are opened wide,
And I am next of kin;
The guests are met, the feast is set:
May'st hear the merry din."


Try the whole thing some time. It is quite fun.