This is a great song that isn't even nearly credited as much as it should be!
This is also according to this version as I know that the original is different:)
http://www.youtube.com/watch?v=0LhpMXYKemE

Tuning - Half tone down (Eb Ab Db Gb Bb Eb)
Capo - None


Intro: C F C F x2


Verse 1:

C           F                C       F
Some birds fly away to the horizons warmer days,
     C               F                    C    F
Summer feels better than the blistering cold
C            F               C             F
I long for more than this doing a job just so I live
   C              F               C        F
I know my soul's vision can't be changed


Pre chorus:
Am                C              F
Someday soon I'll travel to find me
Am              C                 D7       
And this abyss ain't as dark as I feared


Chorus:
C              F                  Am
So I'm gonna pack my things and go
             G                C
Travel the world before I'm old
                 F               Am
I'll send you photos in the post
                  G                    C
That captured the moments I love the most
        F        Am
This is my great escape
         G
This is my great escape


Verse 2:
C           F
I want to climb up mountains
C          F
Drink from nature's fountains
C               F                C
Who knows what I'll do on my way

C     F

C               F
I want to feel lost in transit
C              F 
Find love in a different language
C              F                 C
Who knows who I'll meet on my way


Pre chorus:
Am                C              F
Someday soon I'll travel to find me
Am              C                 D7       
And this abyss ain't as dark as I feared


Chorus:
C            F                  Am 
So I'm gonna pack my things and go
             G                  C
Travel the world before I'm old
                F            Am
I'll send you photos in the post
                   G                      C
That captured the moments I love the most
        F            Am
This is my great escape 
        G              C
This is my great escape


Bridge:

Am         Am/F*7               G
I was once told whilst growing up
                 C         B            Am
If you want to leave then go while you can
Am             Am/F*7               G
Before you get stuck, before you become
C        B                     D7
Another cog in the working machine
D7
Well that's not me so...


Break   C, F, Am, G x2


Chorus/Outro:

C             F                 Am
So I'm gonna pack my things and go
            G                  C
Travel the world before I'm old
               F             Am
I'll send you photos in the post
                   G                      C
That captured the moments I love the most
           F                 Am
I'm gonna pack my things and go
             G               C
Travel the world before I'm old
                   F            Am
Now I'll send you photos in the post
                    G                 C
That captured the moments I love the most
         F          Am
This is my great escape
        G              C
This is my great escape
        F         Am
This is my, this is my
        G              C
This is my great escape