Hi guys -my hubby and i got the ferry from denia to ibiza with baleria .net and they were really cheap - although we werent date specific. I would def not advise you waiting till the day to vuy the tickets, as there is usually a massive queue.
the ferry is really nice and PLENTY of room to relax. Id advise taking a butty and or your own drinks on board in a bag, as they dont bag check you and also its v expensive for food and drinks.
i would advise though watching the ticket prices the week leading up to when you are travelling as they will drop as the ferry starts to become full.
i remember getting the 6am ferry from denia, and thats after we have driven, yes driven from malaga for 8 hours.....were we mad...yes, and did we need a huge vodkaredbull when we landed in ibiza - yes we did, but we got changed on the ferry into our day wear and got the shades on...land right outside the bus stop neat fountain square in san an..... - stop off for that vodka red bull and a bite to eat, then get the taxi to hotel..
have a good onexx