>>1033865Every couple of years someone in Panama or Colombia tries to make a go at being in the ferry business. Usually it's from Colon to Cartagena or something like that. They usually go tits up within a year, but it's worth checking out.
There are also private boat operators that take people on tours of the San Blas islands and then unload you to Turbo or Cartegena via panga boat. One of the more famous is a german sailboat called the Stahlratte that spends winters in the western Caribbean. They take backpackers, bicyclists and motorcyclists across slowly partynig their way down. Everyone is expected to chip in with chores on the trip to keep costs down. Check over at
advrider.com for more info - they're motorcyclists but it's a very active forum. Also:
http://www.stahlratte.orgFinally, as a last resort you can fly across. Girag is the airline that does this, including shipping your vehicle. Motorcyclists and bicyclists that do this know that price goes up as a function of volume x mass, so you want to pack as tight as possible, just like any airplane cargo. They kind of have a captive market, so they're not cheap.