Would transfer to Guapiles be a better option?
Check it here: www.tortuguerovillage.com/english/english.htm
You may have already come and gone, judging from the date this was posted, but for future travelers:
Interbus is used to dealing with travelers who are booked in the all-inclusive lodges, and who provide aquatic transportation from Caño Blanco. There are no public transportation options from Caño Blanco, so you want to go through La Pavona.
To get to La Pavona, you need to get to Cariari de Pococí, and there are direct busses from San José daily. The 9am bus is your best bet, just make sure you get to the Caribeños terminal by 8:30, because tickets sometimes sell out. There are coffee shops and a few fast food options at the terminal, as well as a grocery store.
From Cariari, you get a bus to La Pavona, and the boat coordinates with the busses, so it's quite simple. You just get off the bus, buy your ticket, and get on the boat. You'll be in Tortuguero by around 1:30pm.
-:- Message from TripAdvisor staff -:-
This topic has been closed to new posts due to inactivity. We hope you'll join the conversation by posting to an open topic or starting a new one.
To review the TripAdvisor Forums Posting Guidelines, please follow this link: http://www.tripadvisor.com/pages/forums_posting_guidelines.html
We remove posts that do not follow our posting guidelines, and we reserve the right to remove any post for any reason.