The Song of The Whale can be found here, with chords and a sound sample. It's also on Eric Bogle's site (ericbogle.net) but it's a pdf file with copyright warnings and I couldn't get the blue clicky to work (and cutting and pasting would have been against the author's and publisher's express wishes - although they will consider requests).

But lo! It's already in the DT here , along with a bunch of his other songs.

Ross