I like what was submitted so far, I just had some ideas for some more flourishes,
feel free to play along & use what you'd like!

capo III

  Cadd9  G*
e-----------|
B---1----3--|
G-----------|
D-----------|
A---3----2--|
E--------3--|

(verse 1)
     C            Cadd9       C  Cadd9
     We were born before the wind
     C      Cadd9          C   Cadd9
     Also younger than the sun
     G           G*          G
     'Ere the bonny boat was won
     G                     C     Cadd9  C  Cadd9
     As we sailed into the mystic

(verse 2)
     C               Cadd9          C  Cadd9
     Hark, now, hear the sailor's cry
     C             Cadd9         C  Cadd9
     Smell the sea and feel the sky
     G             G*       G
     Let your soul and spirit fly
     G          C    Cadd9  C  Cadd9
     Into the mystic.

(bridge)
     Em,E,F
         When that foghorn blows,
                   C          Cadd9  C      Cadd9
         I will be comin' home,    Mmm hmm hm
     Em,E,F
         When that foghorn blows,
                 G       G*                G
         I wanna hear it, I don't have to fear it

(chorus)
         C             Cadd9        C  Cadd9
     And I  wanna rock you gypsy soul
     C             Cadd9               C  Cadd9
     Just like way back in the days of old
     G              G*             G
     And magnificently we will float
     G          C   Cadd9  C  Cadd9
     Into the mystic

(bridge)
     Em,E,F
         When that foghorn blows,
                   C          Cadd9  C      Cadd9
         I will be comin' home,    Mmm hmm hm
     Em,E,F
         When that foghorn blows,
                 G       G*                G
         I wanna hear it, I don't have to fear it

(ending chorus)
         C             Cadd9        C  Cadd9
     And I  wanna rock you gypsy soul
     C             Cadd9               C  Cadd9
     Just like way back in the days of old
     G               G*      G
     And together we will float
     G           C   Cadd9  C
     Into the mystic