Dragons in the deep, Cynthia McQuillin

Dragons in the Deep,
Slither, prowl and creep.
The peaceful lapping of the sea
May hide a deadly enemy.
We pray the gods will guard our way.
Return us to our home, someday!

Dragons in the Deep,
Faithful watch we keep.
For dragon claw and teeth like stone
Can splinter timber, iron and bone;
And with one sudden, crushing blow,
Will send us to our deaths, below.

Dragons in the Deep,
With spells our ship is steeped,
And for mighty Odin's Vow
We carve upon each Viking prow
The image of the Dragon's form,
So we may pass here without harm!

Dragons in the Deep,
Beneath these waters, sleep;
And so we sing our tale of woe
For every comrade lost below.
We pass these waters with great care,
Ever mindful where the dragons, lair!



("Dragons In The Deep", song by Cynthia McQuillin) 
https://www.tapatalk.com/groups/angusmacinnes/dragons-in-the-deep-t8906.html

Kanef parody:
Dragons in the deep can’t dive 
So now we ply the seas unseen
Inside a modern submarine --
And pass these waters wit great ease
Only mindful of the dragon’s knees.

Jane Mailander:
We all live in a scaly submarine