Between 2010 and 2013, Dylan Wickrama was on a world trip on his motorcycle. He left with no plans and he had a tight budget. On his trip he covered 210,000 km and road through 80 countries, starting in Switzerland and ending in Argentina. His RTW trip wasn’t about speed, distance or setting records, but it was about exploring the world, meeting people and discovering places. 
After 3 years on the road, he reached the Darien Gap in Panama. Considering his options, Dylan came up with a plan to get around the Darien Gap to continue his trip. And that plan involved water, his motorcycle, some oil drums and bamboo poles.
Dylan wrote a book about his adventure called When the Road Ends. It’s available on his website and on Amazon.

Website: ride2xplore.com

Horizons Unlimited - horizonsunlimited.com

Horizons Unlimited’s forums have good information where some adventurers have taken cheaper routes, shipping the bikes in containers and then meeting up with the bikes through a kaleidoscope of boats and buses. Although cheaper to go this route, it also takes longer and requires some good bit of organization. You need to check your sources out carefully though, as there are some stories of robbery, problems with customs when using smaller boats, etc.

Music: www.audionautix.com