Chord Progression:
G C G Am D G
Picking guide (fingerstyle):

G                   C                  Am                    D

E|-----3-------3---|-----0-------0---|-----0---------0---|-----2-------2--|
B|-----3-------3---|-----1-------1---|-----1---------1---|-----3-------3--|
G|---0---0---0---0-|---0---0---0---0-|---2---2-----2---2-|---2---2---2---2|
D|---------0-------|---------2-------|---------0h2-------|-0--------------|
A|-----------------|-3---------------|-0-----------------|---------0------|
E|-3---------------|-----------------|-------------------|----------------|
G
Mother, mother ocean, I have heard you call 
C                                                           G
I've wanted to sail upon your waters since I was three feet tall
               Am  D 
You've seen it all,
                G
You've seen it all