http://www.trasmediterranea.es/trasmeweb/inicio.do

i'd think about flying if i were you it only takes about 1/2 hour and is cheaper than ferry
ferry about €200 for 2 ,flights with iberia €160 for 2(if you avoid weekends) plus there are about a dozen flights a day each way allowing a nice lie in after a hard nights clubbing.
(i did it a few years ago but booked late while in mallorca and didnt get such a good deal)

there are loads of excursion shops in magaluf and Palma Nova that offer this deal foir 60 Euros youget to go in the morign to Ibiza get there around 9.30 am and spend the day there, you also get included in the price a b&b which is local to San Antonio, and you get entrance to a few clubs and all for 60 euros plus your return trip home the following day well back to mallorca anyway - i did this last year twice and the year before it was brilliant last year we took the kids as well so didnt go clubbing but it was still good fun

dont get the plane get the fery might take longer but its nicer i think

thanks for your replys

(wlondon) do you have any web links or names of the people you went with to ibiza ????

This article may be of interest to you
http://www.a2zmallorca.com/detail/3636.htm

thanks for the link,it does'nt suit as we want to stay overnight in ibiza to go clubbing and come back around 10am the next morning