I wouldn't advise going there without a booking, especially if you can't speak the local lingo.
If you do chance on somebody to take you, if they have no bookings, likely they are not a good operator anyway.
Get a few people and book with somebody that has a good reputation, send me a P.M and i can help you out as iv'e fished there a few times and even placed in their yearly sailfish tournament.
Spyros