Google maps wants you to swim

Are you wondering what's the cheapest way to go from OPorto (Portugal) to New York (United States of America)? Well, why not use Google Maps and "ask for directions"?

After clicking the "Get Directions" section in the Google Maps site, write "Oporto" to "New York" on the source and destination. On the left side of the search results, notice step 51.

Source: João Bordalo