For anyone wanting to experience the 'other side of Ibiza' I can't recommend our day out with Jergen the German highly enough. He took four of us out for 7-8 hours in his minibus to see such beautiful sights and hear such stories, dating back to early 17th century and including how the hippy commune worked.(He was oneof the original hippy settlers) We visited many ancient sites and pretty unspoilt bays and enjoyed a delicous lunch in the courtyard of a farmhouse. We would never have found these places without Jergen. The tour is called Select Ibiza with Thomsons but if you google Jergen, I'm sure he'll come up as he does other tours as well, some by jeep.