in its turn this lane provides access to itanhangá to the north, joá to the south, and, through the bridges over the joatinga canal, to the bulk of the barra da tijuca neighborhood.

this link shows ilha da marina on a wikimapia - the link as we present it is best seen using google chrome, as it might not open correctly with other browsers.   

the small pier with the taxi-boats connecting the main avenue to the islands is located behind a building near the barra point shopping center, on avenida armando lombardi, 350, barra da tijuca.