You could almost do the entire journey by car.

http://en.wikipedia.org/wiki/Dari%C3%A9n_Gap

No surprise they they will be taking a ferry from Panama to Columbia.

__________________
1982 300GD Carmine Red (DB3535) Cabriolet Parting Out
1990 300SEL Smoke Silver (Parting out)
1991 350SDL Blackberry Metallic (481)

"The thing is Bob, its not that I'm lazy...its that I just don't care."