the last date for ferries on ALL their timetables from Ibiza is 6/10 so you can't book anywhere else yet. if you don't have to go on a certain day, don't panic, balearia will release the info in the fullness of time. I've lost holidays in the past because of their tardiness, I couldn't book the villa accommodation I wanted in Mallorca for the days I wanted because I didn't know if there would be ferries, by the time balearia got their act together my accom was gone.